Electrodeless battery with self-conduction heat dissipation function, battery pack and application of battery pack

Abstract

The invention provides an electrodeless battery with a self-conduction heat dissipation function, a battery pack and application of the electrodeless battery. The electrodeless battery comprises a battery positive electrode, a battery negative electrode, a battery cell and a battery cell insulation sleeve, and the battery cell insulation sleeve wraps the battery cell; the battery cell is of a cuboid structure. The battery cell comprises a battery cell positive plate, a battery cell positive electrode, an isolating membrane, a battery cell negative plate and a battery cell negative electrode; the battery positive electrode / battery negative electrode is of a housing structure; the upper part of the housing is a hollow pipeline; the electrode housings of the battery respectively extend in opposite directions along the outer surface of the battery cell and at least partially cover the battery cell; the battery positive electrode is electrically connected with the battery cell positive electrode to form an electrical conduction and heat conduction path of the battery cell; and the battery negative electrode is electrically connected with the battery cell negative electrode to form an electrical conduction and heat conduction path of the battery cell. And a discharge detection sensor and / or a temperature sensor can be arranged on the battery positive electrode and the battery negative electrode, so that the state of the battery cell is monitored, and early warning is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of power batteries, and more particularly to a non-polar battery with self-conductive heat dissipation, a battery pack and their applications. Background Art

[0002] Power batteries are mainly used in electric vehicles, electric ships, electric aircraft and energy storage fields. Driven by the rapid development of these fields, the demand and development of power batteries are very rapid.

[0003] The existing power batteries have limitations in terms of electrical structure and mechanical structure, and there are the following four problems: The first is the convenience of using power batteries and the maintainability of the power battery PACK; the second is the electrical performance of power batteries; the third is the thermal runaway problem caused by the heat generation of power batteries; the fourth is the real-time warning problem of power batteries. There has been no good solution to these problems before.

[0004] Regarding the convenience of using the power battery PACK and its maintainability, as well as the electrical performance of power batteries, in the existing design with the application number 2023112368460 and the invention name of non-polar battery, non-polar battery array, non-polar battery CTC and application device proposed by the inventor, good solutions are provided.

[0005] Currently, the solution to the heat dissipation of power batteries is to use a cold air or liquid cooling scheme to cool and dissipate heat from the outer shell of the power battery. In the research on power batteries by the inventor, it is found that the heat source of the power battery comes from the battery cells, and the heat dissipation scheme for the outer shell of the power battery is like scratching an itch through boots, which cannot completely solve the heat dissipation problem of the power battery. Summary of the Invention

[0006] In view of the defects and deficiencies of power batteries in the prior art, according to the first aspect of the object of the present invention, a non-polar battery with self-conductive heat dissipation is proposed, which belongs to a power battery. The non-polar battery includes a battery positive electrode, a battery negative electrode, battery cells and a battery cell insulation sleeve, and the battery cell insulation sleeve wraps the battery cells; The battery cell has a cuboid structure, the length of the battery cell is greater than the height of the battery cell, and the length of the battery cell is greater than the thickness of the battery cell stack; The battery cell includes a battery cell positive electrode plate, a battery cell positive electrode, a separator, a battery cell negative electrode plate and a battery cell negative electrode; a separator is arranged between the battery cell positive electrode plate and the battery cell negative electrode plate; The battery cell positive electrode is formed as the upper edge in the length direction of the battery cell positive electrode plate, and the upper edge part is not coated with positive electrode dressing; The battery cell negative electrode is formed as the lower edge in the length direction of the battery cell negative electrode plate, and the lower edge part is not coated with negative electrode dressing; The positive electrode of the battery is a housing structure, and the upper part of the housing is a hollow pipe; the housing of the positive electrode of the battery extends along the outer surface of the battery cell towards the negative electrode of the battery and at least partially covers the battery cell; the positive electrode of the battery is electrically connected to the positive electrode of the battery cell to form an electrical conduction and heat conduction path of the battery cell; The negative electrode of the battery is a housing structure, and the upper part of the housing is a hollow pipe; the housing of the negative electrode of the battery extends along the outer surface of the battery cell towards the positive electrode of the battery and at least partially covers the battery cell; the negative electrode of the battery is electrically connected to the negative electrode of the battery cell to form an electrical conduction and heat conduction path of the battery cell; There is no electrical short circuit between the positive electrode and the negative electrode of the battery.

[0007] As an optional embodiment, the positive electrode and the negative electrode of the battery form part of the housing structure of the battery cell.

[0008] As an optional embodiment, the positive electrode of the battery is provided with a positive electrode opening, and the positive electrode of the battery cell passes through the opening from the positive electrode of the battery cell and is connected to the positive electrode of the battery to form an electromechanical integration, having the dual functions of electrical conduction and heat conduction; The negative electrode of the battery is provided with a negative electrode opening, and the negative electrode of the battery cell passes through the opening from the positive electrode of the battery cell and is connected to the negative electrode of the battery to form an electromechanical integration, having the dual functions of electrical conduction and heat conduction.

[0009] As an optional embodiment, the hollow pipes provided on the positive electrode and the negative electrode of the battery are respectively connected to an external liquid cooling system, and the heat of the battery cell is carried away by the liquid cooling system.

[0010] As an optional embodiment, the power battery is a liquid electrolyte battery, a solid electrolyte battery or a condensed state battery.

[0011] As an optional embodiment, a discharge detection sensor and / or a temperature detection sensor are provided on the positive electrode and the negative electrode of the non-polar battery.

[0012] According to the second aspect of the object of the present invention, a non-polar battery pack with self-conducting heat dissipation is also proposed, including a plurality of the above-mentioned non-polar batteries with self-conducting heat dissipation; Among them, the positive electrodes and the negative electrodes of two adjacent non-polar batteries are respectively electrically connected in series through corresponding electrode contact rails in sequence to realize the electrical connection of the non-polar batteries, and the electrode contact rails on the upper side and the corresponding electrode contact rails on the lower side of the non-polar batteries in the non-polar battery pack are staggered in sequence to form the overall electrical connection and mechanical fixation of the non-polar batteries in the non-polar battery pack; The non-polar battery is slidably inserted between the electrode contact rails on the upper side and the lower side of the non-polar battery pack to realize the electrical connection and mechanical fixation of the non-polar battery pack; On the positive electrode and negative electrode of the non-polar battery described, liquid inlet and outlet interfaces connected to the liquid cooling system are respectively provided, and an external liquid cooling system is connected to directly dissipate heat from the battery cells of the power battery.

[0013] As an optional implementation manner, the non-polar battery pack further includes a first heat dissipation substrate and a second heat dissipation substrate; The electrode contact rails are respectively fixedly installed on the first heat dissipation substrate and the second heat dissipation substrate and face the direction of the non-polar battery; the electrode contact rails are electrically insulated from the first heat dissipation substrate and the second heat dissipation substrate.

[0014] As an optional implementation manner, the first heat dissipation substrate is provided with a first liquid cooling interface, the second heat dissipation substrate is provided with a second liquid cooling interface, and the first liquid cooling interface and the second liquid cooling interface are connected to the cooling system; Corresponding to the positive side and negative side of each non-polar battery, a pair of sliding ball valves are respectively provided on the first heat dissipation substrate and the second heat dissipation substrate, and are arranged to be connected to the hollow pipes inside the positive electrode or negative electrode of the non-polar battery, forming a heat dissipation path for the positive electrode and negative electrode of the battery.

[0015] As an optional implementation manner, the cross-section of the electrode contact rail is in the shape of "E", and a plurality of elastic contact electrodes are respectively provided on the bottom and the inner sides of the two side edges of the electrode contact rail, and respectively form mechanical and electrical contacts with the bottom surface of the positive electrode and negative electrode of the battery and the covering surface on the side surface of the battery cell; a limiting grid is provided at the bottom of the electrode contact rail, and the limiting grid controls the fixed interval between adjacent non-polar batteries.

[0016] According to the third aspect of the object of the present invention, a non-polar battery with discharge detection is further proposed. The non-polar battery includes a positive electrode of the battery, a negative electrode of the battery, a battery cell and a battery cell insulating sleeve, and the battery cell insulating sleeve wraps the battery cell; The battery cell is in a cuboid structure, the length of the battery cell is greater than the height of the battery cell, and the length of the battery cell is greater than the thickness of the battery cell stack; The battery cell includes a positive electrode sheet of the battery cell, a positive electrode of the battery cell, a separator, a negative electrode sheet of the battery cell and a negative electrode of the battery cell; a separator is arranged between the positive electrode sheet of the battery cell and the negative electrode sheet of the battery cell; The positive electrode of the battery cell is formed as the upper edge in the length direction of the positive electrode sheet of the battery cell, and this upper edge part is not coated with positive electrode dressing; The negative electrode of the battery cell is formed as the lower edge in the length direction of the negative electrode sheet of the battery cell, and this lower edge part is not coated with negative electrode dressing; The positive electrode of the battery is electrically connected to the positive electrode of the battery cell, forming an electrical conduction and heat conduction path of the battery cell; The negative electrode of the battery is electrically connected to the negative electrode of the battery cell, forming an electrical conduction and heat conduction path of the battery cell; There is no electrical short circuit between the positive electrode of the battery and the negative electrode of the battery; On the positive electrode and negative electrode of the non-polar battery, a discharge detection sensor and / or a temperature sensor are provided.

[0017] As an optional implementation manner, the positive electrode of the battery is a housing structure, and the upper part of the housing is a hollow pipe; the housing of the positive electrode of the battery extends along the outer surface of the battery cell towards the negative electrode of the battery and at least partially covers the battery cell; the positive electrode of the battery is electrically connected to the positive electrode of the battery cell to form an electrical conduction and heat conduction path of the battery cell; The positive electrode of the battery is a housing structure, and the upper part of the housing is a hollow pipe; the housing of the negative electrode of the battery extends along the outer surface of the battery cell towards the positive electrode of the battery and at least partially covers the battery cell; the negative electrode of the battery is electrically connected to the negative electrode of the battery cell to form an electrical conduction and heat conduction path of the battery cell.

[0018] As an optional implementation manner, the positive electrode and the negative electrode of the battery form a part of the housing structure of the battery cell.

[0019] As an optional implementation manner, the positive electrode of the battery is provided with a positive electrode opening, and the positive electrode of the battery cell passes through the opening from the positive electrode of the battery cell and is connected to the positive electrode of the battery to form an electromechanical integration, having the dual functions of electrical conduction and heat conduction; The negative electrode of the battery is provided with a negative electrode opening, and the negative electrode of the battery cell passes through the opening from the positive electrode of the battery cell and is connected to the negative electrode of the battery to form an electromechanical integration, having the dual functions of electrical conduction and heat conduction.

[0020] As an optional implementation manner, the hollow pipes provided on the positive electrode and the negative electrode of the battery are respectively connected to an external liquid cooling system, and the heat of the battery cell is taken away by the liquid cooling system.

[0021] As an optional implementation manner, the power battery is a liquid electrolyte battery, a solid electrolyte battery or a condensed state battery.

[0022] According to the fourth aspect of the object of the present invention, a non-polar battery pack with discharge detection is further proposed, including a plurality of the aforementioned non-polar batteries with discharge detection; Wherein, the positive electrodes and negative electrodes of two adjacent non-polar batteries are respectively electrically connected in series in sequence through corresponding electrode contact rails, and the electrode contact rails on the upper side and the corresponding electrode contact rails on the lower side of the non-polar batteries in the non-polar battery pack are arranged staggeredly in sequence, constituting the overall electrical connection and mechanical fixation of the non-polar batteries in the non-polar battery pack; The non-polar battery is slidably inserted between the electrode contact rails on the upper side and the lower side of the non-polar battery pack to achieve the electrical connection and mechanical fixation of the non-polar battery pack; On the positive electrode and negative electrode of the non-polar battery, liquid inlet and outlet interfaces connected to the liquid cooling system are respectively provided, and an external liquid cooling system is connected to directly dissipate heat from the battery cells of the power battery.

[0023] As an optional implementation manner, the non-polar battery pack further includes a first heat dissipation substrate and a second heat dissipation substrate; The electrode contact rails are respectively fixedly installed on the first heat dissipation substrate and the second heat dissipation substrate and face the direction of the non-polar battery; the electrode contact rails are insulated from both the first heat dissipation substrate and the second heat dissipation substrate.

[0024] As an optional implementation manner, the first heat dissipation substrate is provided with a first liquid cooling interface, and the second heat dissipation substrate is provided with a second liquid cooling interface, and the first liquid cooling interface and the second liquid cooling interface are connected to the cooling system; Corresponding to the positive electrode side and the negative electrode side of each non-polar battery, the first heat dissipation substrate and the second heat dissipation substrate are respectively provided with a pair of sliding ball valves, which are arranged to be connected to the hollow pipelines inside the positive electrode or the negative electrode of the non-polar battery, so as to form a heat dissipation path for the positive electrode and the negative electrode of the battery.

[0025] As an optional implementation manner, corresponding to each non-polar battery, the electrode contact rails on the positive electrode side and the negative electrode side are located between a pair of sliding ball valves on the corresponding side.

[0026] As an optional implementation manner, the cross section of the electrode contact rail is in the shape of "E", and a plurality of elastic contact electrodes are respectively arranged on the bottom and the inner sides of both sides of the electrode contact rail, which respectively form mechanical and electrical contacts with the bottom surface of the positive electrode and the negative electrode of the battery and the covering surface on the side of the battery cell; a limiting grid is arranged at the bottom of the electrode contact rail, and the limiting grid controls the fixed interval between adjacent non-polar batteries.

[0027] According to the fifth aspect of the object of the present invention, an electric vehicle is further provided, including the non-polar battery pack with self-conductive heat dissipation described above, or a non-polar battery pack with discharge detection.

[0028] According to the sixth aspect of the object of the present invention, an electric ship is further provided, characterized in that it includes the non-polar battery pack with self-conductive heat dissipation described above, or a non-polar battery pack with discharge detection.

[0029] According to the seventh aspect of the object of the present invention, an electric aircraft is further provided, including the non-polar battery pack with self-conductive heat dissipation described above, or a non-polar battery pack with discharge detection.

[0030] According to the eighth aspect of the object of the present invention, a degaussing system for an electric ship is further provided, including the non-polar battery pack with self-conductive heat dissipation described above, or a non-polar battery pack with discharge detection. Description of the Drawings

[0031] The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For the sake of clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the present invention will be described by way of example and with reference to the drawings.

[0032] Figure 1 is a schematic structural view of a non-polar battery pack according to an embodiment of the present invention.

[0033] Figure 2 is a schematic side view of a single non-polar battery according to an embodiment of the present invention.

[0034] Figure 3 is a schematic principle view of a single non-polar battery according to an embodiment of the present invention.

[0035] Figure 4 is a schematic view of a plurality of non-polar batteries according to an embodiment of the present invention.

[0036] Figure 5 is a front view of a non-polar battery pack according to an embodiment of the present invention. For ease of illustration, the upper heat dissipation substrate and the electrode contact guide are removed in the drawing. Detailed Embodiments

[0037] To better understand the technical content of the present invention, specific embodiments are given below in conjunction with the accompanying drawings for illustration.

[0038] In the present disclosure, aspects of the present invention are described with reference to the drawings, and many illustrative embodiments are shown in the drawings. The embodiments of the present disclosure are not necessarily intended to include all aspects of the present invention. It should be understood that the various concepts and embodiments introduced above, as well as those concepts and embodiments described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the present invention are not limited to any embodiment. Additionally, some aspects of the present invention can be used alone, or in any suitable combination with other aspects of the present invention.

[0039] {Embodiment 1} Combined with Figures 1 to 5 as shown, a non-polar battery according to an embodiment of the present invention includes a battery positive electrode 1, a battery negative electrode 2, a battery cell 3, and a battery cell insulating sleeve, and the battery cell insulating sleeve wraps the battery cell 3.

[0040] Combined with Figure 1 , Figure 2 , Figure 3 as shown, the battery cell 3 has a cuboid structure, the length of the battery cell is greater than the height of the battery cell, and the length of the battery cell is greater than the thickness of the battery cell stack.

[0041] Combined with Figure 2 ,Figure 3 The battery cell 3 includes a battery cell positive electrode plate 12, a battery cell positive electrode 13, a separator 30, a battery cell negative electrode plate 22, and a battery cell negative electrode 23; the separator 30 is disposed between the battery cell positive electrode plate 12 and the battery cell negative electrode plate 22.

[0042] Combined with Figure 3 , the battery cell positive electrode 13 is configured as the upper edge in the length direction of the battery cell positive electrode plate 12, and the upper edge portion is not coated with the positive electrode dressing. The battery cell negative electrode 23 is configured as the lower edge in the length direction of the battery cell negative electrode plate 22, and the lower edge portion is not coated with the negative electrode dressing.

[0043] As an optional embodiment, the battery positive electrode 1 is of a housing structure, and the upper part of the housing is a hollow pipe.

[0044] Combined with Figure 1 , Figure 2 , Figure 4 As shown, the housing structure of the battery positive electrode 1 extends along the outer surface of the battery cell 3 towards the battery negative electrode 2 and at least partially covers the battery cell 3; the battery positive electrode 1 is electrically connected to the battery cell positive electrode 13 to form an electrical conduction and heat conduction path of the battery cell.

[0045] As an optional embodiment, the battery negative electrode 2 is of a housing structure, and the upper part of the housing is a hollow pipe.

[0046] Combined with Figure 1 , Figure 2 , Figure 4 As shown, the housing structure of the battery negative electrode 2 extends along the outer surface of the battery cell 3 towards the battery positive electrode 1 and at least partially covers the battery cell 3; the battery negative electrode 2 is electrically connected to the battery cell negative electrode 23 to form an electrical conduction and heat conduction path of the battery cell.

[0047] As shown in the accompanying drawings, the battery positive electrode 1 and the battery negative electrode 2 are in an insulated and non-contact state and do not form an electrical short circuit.

[0048] Thus, the battery positive electrode 1 is electrically connected to the battery cell positive electrode 13 to form an electrical conduction and heat conduction path of the battery cell; the battery positive electrode 1 extends from the outer surface of the battery cell 3 towards the battery negative electrode 2 and at least partially covers the side surface of the battery cell 3. The battery negative electrode 2 is electrically connected to the battery cell negative electrode 23 to form an electrical conduction and heat conduction path of the battery cell; the battery negative electrode 2 extends from the outer surface of the battery cell 3 towards the battery positive electrode 1 and at least partially covers the side surface of the battery cell 3. The heat of the substrates of the battery cell positive electrode plate 12 and the battery cell negative electrode plate 22 is directly conducted to the outside of the battery cell 3 respectively through the battery cell positive electrode 13 and the battery positive electrode 1 and the battery cell negative electrode 23 and the battery negative electrode 2.

[0049] Among them, the battery positive electrode 1 and the battery negative electrode 2 do not contact each other and do not form an electrical short circuit.

[0050] As an alternative embodiment, the battery positive electrode 1 and the battery negative electrode 2 form part of the housing structure of the battery cell 3. As shown in the accompanying drawings, the coverage area of the battery positive electrode 1 on the side of the battery cell 3 and the coverage area of the battery negative electrode 1 on the side of the battery cell 3 wrap around the battery cell to form the housing structure of the battery cell or a part of the housing structure.

[0051] As an alternative design, a symmetric relationship is formed between the coverage area of the battery positive electrode 1 on the side of the battery cell 3 and the coverage area of the battery negative electrode 2 on the side of the battery cell 3.

[0052] As an alternative embodiment, the battery positive electrode 1 is provided with a positive electrode opening, and the battery cell positive electrode 13 passes through the opening from the positive electrode of the battery cell and is connected to the battery positive electrode 1 to form an electromechanical integration, having the dual functions of electrical conduction and heat conduction. Similarly, the battery negative electrode 2 is provided with a negative electrode opening, and the battery cell negative electrode 23 passes through the opening from the positive electrode of the battery cell and is connected to the battery negative electrode 2 to form an electromechanical integration, having the dual functions of electrical conduction and heat conduction.

[0053] Thus, after the positive and negative electrodes of the battery are respectively opened on the corresponding positive and negative electrode surfaces, the battery cell positive electrode 13 passes through the positive electrode opening from the positive electrode side of the battery cell and is mechanically connected to the battery positive electrode 1 as a whole; similarly, for the negative electrode opening provided on the battery negative electrode 2, the battery cell negative electrode 23 passes through the negative electrode opening from the negative electrode side of the battery cell and is mechanically connected to the battery negative electrode 2 as a whole, thereby effectively electromechanically connecting the battery cell electrodes and the battery electrodes in an advantageous manner and realizing the dual functions of electrical conduction and heat conduction.

[0054] As an alternative embodiment, after the battery cell electrode passes through the opening, the two (metal or alloy materials) can be reliably mechanically connected and electrically connected through processes such as welding, evaporation coating, spraying, rolling, and crimping.

[0055] As an alternative embodiment, the hollow pipes provided on the battery positive electrode 1 and the battery negative electrode 2 can be respectively arranged at the bottom surface positions on the corresponding electrode sides and connected to an external liquid cooling system, and the heat of the battery cell 3 is carried away by the liquid cooling system to directly dissipate the heat of the battery cell.

[0056] As an alternative embodiment, hollow pipes are provided inside both the battery positive electrode 1 and the battery negative electrode 2, and the inlets and outlets of the hollow pipes are respectively connected to the liquid cooling system. Through the circulation of the liquid cooling medium in the liquid cooling system, liquid cooling heat dissipation circuits are respectively formed inside the battery positive electrode 1 and the battery negative electrode 2 to directly dissipate the heat of the power battery cell 3.

[0057] It should be understood that the power battery in the embodiments of the present invention is one of a liquid electrolyte battery, a solid electrolyte battery, or a condensed state battery.

[0058] As an alternative embodiment, a discharge detection sensor and / or a temperature sensor are provided on the battery positive electrode 1 and the battery negative electrode 2 of the non-polar battery. Through the discharge detection sensor, the partial discharge state between the positive electrode plate 12 of the battery cell and the negative electrode plate 22 of the battery cell is detected, thereby realizing the discharge detection of the non-polar battery.

[0059] Through the temperature sensor, the temperature of the battery cell and / or the change of the temperature are monitored in real time.

[0060] As an alternative embodiment, the temperature sensor is selected as a patch type temperature sensor and is mounted on the battery positive electrode 1 and / or the battery negative electrode 2.

[0061] It should be understood that the detection of the battery state of the power battery is the key to the safe use of the battery. The traditional technical means is to detect the battery state by sampling and detecting the battery current and voltage. However, this detection means is for detecting and warning the change of the electrical signal caused by the short circuit of the battery after it has occurred. Especially when the battery has short-circuited, the traditional sampling detection is a detection means for the serious danger (short circuit) that has already occurred, which belongs to after-the-fact detection and cannot perform pre-detection and warning.

[0062] In the embodiment of the present invention, by providing a discharge detection sensor in the battery cell, the real-time monitoring and warning of the discharge state of the battery cell are realized. In particular, when a short circuit is about to occur or may occur between the positive electrode plate 12 and the negative electrode plate 22 of the battery cell, in the case of local and fine crystallization inside the battery cell resulting in fine partial discharge but not yet causing the isolation film inside the battery cell to fail to isolate and cause electrical short circuit, the real-time monitoring of the fine discharge is realized, and early warning is given, so as to realize the real-time monitoring of the discharge of the battery cell and reduce and avoid the risk of further development leading to the serious danger of electrical short circuit.

[0063] As an alternative embodiment of the present invention, the aforementioned discharge monitoring sensor is a sensor based on radio frequency detection or current induction detection.

[0064] For example, taking radio frequency detection as an example, a first antenna electrically connected thereto can be provided on the positive electrode plate 12 of the battery, and / or a second antenna electrically connected thereto can be provided on the negative electrode plate 22 of the battery cell.

[0065] The first antenna is a radio frequency antenna connected to the battery positive electrode 1 or the battery cell positive electrode 13; The second antenna is a radio frequency antenna connected to the battery negative electrode 2 or the battery cell negative electrode 23; The partial discharge state between the positive electrode plate 12 and the negative electrode plate 22 of the battery cell is sensed by the first antenna and / or the second antenna and a radio frequency signal is emitted, and is detected by the radio frequency detection sensor to sense the partial discharge signal inside the battery cell.

[0066] For example, taking a current induction detection sensor as an example, the discharge detection sensor includes a first lead wire electrically connected to the battery cell positive electrode sheet 12 and a second lead wire electrically connected to the battery cell negative electrode sheet 22, and an induction current sensor is arranged between the first lead wire and the second lead wire to form an electrical circuit; The inductive current sensor is configured to detect a pulse current generated when a partial discharge is emitted between the positive electrode sheet 12 of the battery cell and the negative electrode sheet 22 of the battery cell, so as to sense a partial discharge signal in the battery cell.

[0067] The first lead is configured to be connected to the battery positive electrode 1 or the battery cell positive electrode 13 and led out; the second lead is configured to be connected to the battery negative electrode 2 or the battery cell negative electrode 23 and led out.

[0068] {Example 2} Combination Figures 1 to 5 As shown, the non-polar battery pack according to the embodiment of the present invention includes a plurality of non-polar batteries according to the above embodiments, such as Figure 1 , Figure 4 The figure shows a schematic diagram of a plurality of single non-polar batteries connected in series through electrode contact rails 200 to form a plurality of non-polar batteries.

[0069] As shown in the accompanying drawings, the battery positive electrode 1 and the battery negative electrode 2 of two adjacent polar non-polar batteries are respectively connected in series through corresponding electrode contact rails 200, and the electrode contact rails 200 on the upper side of the polar non-polar battery pack are staggered with the electrode contact rails 200 on the lower side, so that an electrical connection is formed between any two adjacent polar non-polar batteries, forming a series relationship and constituting an electrical circuit of the polar non-polar battery pack.

[0070] The non-polar battery is slidably inserted between the electrode contact rails 200 disposed on the upper and lower sides of the non-polar battery pack to achieve electrical connection and mechanical fixation of the non-polar battery pack.

[0071] Among them, the battery positive electrode 1 and the battery negative electrode 2 of each non-polar battery pack are connected to the liquid cooling system 100, combined with Figure 1 , Figure 2 As shown, on the one hand, the battery electrodes (battery positive electrode 1, battery negative electrode 2) are not only located on the bottom surface of the positive and negative sides, but also cover the side surfaces of the battery cells, thereby forming a battery cell shell structure and improving the heat conduction and heat dissipation of the battery cells. On the other hand, the liquid cooling system 100 directly dissipates the heat of the battery cells 3 of the power battery, thereby achieving efficient and direct thermal management of the battery cells and reducing the risk of thermal management failure of the power battery.

[0072] As shown in the figure, the non-polar battery pack further includes a first heat dissipation substrate 110 and a second heat dissipation substrate 120 . The first heat dissipation substrate 110 and the second heat dissipation substrate 120 can be designed as a metal heat dissipation substrate.

[0073] The electrode contact rails 200 are respectively fixedly installed on the first heat dissipation substrate 110 and the second heat dissipation substrate 120, and face the direction of the non-polar battery. As Figure 1 shown, the upper electrode contact rail 200 is fixedly installed on the first heat dissipation substrate 110 through its bottom. The upper electrode contact rails are installed on the first heat dissipation substrate 110 in parallel at fixed intervals and face the direction of the non-polar battery. Similarly, the lower electrode contact rail 200 is fixedly installed on the second heat dissipation substrate 120 through its bottom. The lower electrode contact rails 200 are installed on the second heat dissipation substrate 120 in parallel at fixed intervals and face the direction of the non-polar battery.

[0074] Thus, a plurality of non-polar batteries are inserted into the space formed by the first heat dissipation substrate 110 located above and the second heat dissipation substrate 120 located below in parallel by dynamic insertion, and are in electrical contact connection with the upper electrode contact rail and the lower electrode contact rail, realizing the electrical circuit of the non-polar battery pack.

[0075] It should be understood that insulation is maintained between the electrode contact rail and the first heat dissipation substrate 110 and the second heat dissipation substrate 120. For example, an insulating layer (such as an insulating pad) is provided between the bottom surface of the electrode contact rail and the first heat dissipation substrate 110 and the second heat dissipation substrate 120 to achieve insulation between the two.

[0076] Combined with the figure, the first heat dissipation substrate 110 is provided with a first liquid cooling interface 111, the second heat dissipation substrate 120 is provided with a second liquid cooling interface 121, and the first liquid cooling interface 111 and the second liquid cooling interface 121 are connected to the cooling system 100.

[0077] Corresponding to the positive electrode side and the negative electrode side of each non-polar battery, the first heat dissipation substrate 110 and the second heat dissipation substrate 120 are respectively provided with a pair of sliding ball valves 130, which are arranged to be connected to the hollow pipelines inside the battery positive electrode 1 or the battery negative electrode 2 of the non-polar battery, forming a liquid cooling heat dissipation circuit for the battery positive electrode 1 and the battery negative electrode 2.

[0078] Thus, through the liquid cooling medium circulation of the liquid cooling system, liquid cooling heat dissipation circuits are respectively formed inside the battery positive electrode 1 and the battery negative electrode 2, directly dissipating heat from the battery cells 3 of the power battery.

[0079] Combined with the attached figure, corresponding to each non-polar battery, the positions between the electrode contact rails on the positive electrode side and the negative electrode side are for a pair of sliding ball valves 130 on the corresponding side.

[0080] On the first heat dissipation substrate 110 or the second heat dissipation substrate 120 on the same side, a sliding ball valve 130 is provided between adjacent electrode contact rails 200.

[0081] As an alternative embodiment, each electrode contact rail has the same structural design and is a conductive metal rail or a metal alloy rail with an "E"-shaped cross-section. A plurality of elastic contact electrodes are respectively provided on the bottom and the inner sides of both sides of the electrode contact rail, and form mechanical and electrical contacts with the bottom surfaces of the battery positive electrode 1 and the battery negative electrode 2 and the covering surfaces on the side surfaces of the battery cell 3 respectively. Combined with the attached drawings, a limit grid is provided at the bottom of the electrode contact rail, and the limit grid controls the fixed interval between adjacent non-polar batteries.

[0082] {Embodiment 3} According to an embodiment of the present invention, an electric vehicle is also proposed, which includes the non-polar battery pack of any of the foregoing embodiments.

[0083] {Embodiment 4} According to an embodiment of the present invention, an electric ship is also proposed, which includes the non-polar battery pack of any of the foregoing embodiments.

[0084] {Embodiment 5} According to an embodiment of the present invention, an electric aircraft is also proposed, which includes the non-polar battery pack of any of the foregoing embodiments.

[0085] {Embodiment 6} According to an embodiment of the present invention, a degaussing system for an electric ship is also proposed, which includes the non-polar battery pack of any of the foregoing embodiments.

[0086] Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to what is defined by the claims.

Claims

1. A non-polar battery with self-conducting heat dissipation, characterized in that, The non-polar battery includes a battery positive electrode (1), a battery negative electrode (2), a battery cell (3), and a battery cell insulating sleeve, and the battery cell insulating sleeve wraps the battery cell (3); The battery cell (3) has a cuboid structure, the length of the battery cell is greater than the height of the battery cell, and the length of the battery cell is greater than the thickness of the battery cell laminate; The battery cell (3) includes a battery cell positive electrode plate (12), a battery cell positive electrode (13), a separator (30), a battery cell negative electrode plate (22), and a battery cell negative electrode (23); a separator (30) is provided between the battery cell positive electrode plate (12) and the battery cell negative electrode plate (22); The battery cell positive electrode (13) is formed as the upper edge in the length direction of the battery cell positive electrode plate (12), and the upper edge portion is not coated with a positive electrode dressing; The battery cell negative electrode (23) is formed as the lower edge in the length direction of the battery cell negative electrode plate (22), and the lower edge portion is not coated with a negative electrode dressing; The battery positive electrode (1) has a housing structure, and the upper part of the housing is a hollow pipe; the battery positive electrode housing extends along the outer surface of the battery cell (3) towards the battery negative electrode (2) and at least partially covers the battery cell (3); the battery positive electrode (1) is electrically connected to the battery cell positive electrode (13) to form an electrical conduction and heat conduction path for the battery cell; The battery negative electrode (2) has a housing structure, and the upper part of the housing is a hollow pipe; the battery negative electrode housing extends along the outer surface of the battery cell (3) towards the battery positive electrode (1) and at least partially covers the battery cell (3); the battery negative electrode (2) is electrically connected to the battery cell negative electrode (23) to form an electrical conduction and heat conduction path for the battery cell; There is no electrical short circuit between the battery positive electrode (1) and the battery negative electrode (2).

2. The self-conducting heat-dissipating non-polar battery according to claim 1, wherein The battery positive electrode (1) and the battery negative electrode (2) are formed as a part of the housing structure of the battery cell (3).

3. The self-conducting heat-dissipating non-polar battery according to claim 1, wherein, The battery positive electrode (1) is provided with a positive electrode opening, and the battery cell positive electrode (13) passes through the opening from the battery cell positive electrode and is connected to the battery positive electrode (1) to form an electromechanical integration, having the dual functions of electrical conduction and heat conduction; The battery negative electrode (2) is provided with a negative electrode opening, and the battery cell negative electrode (23) passes through the opening from the battery cell positive electrode and is connected to the battery negative electrode (2) to form an electromechanical integration, having the dual functions of electrical conduction and heat conduction.

4. The self-conducting heat-dissipating non-polar battery according to claim 1, wherein The hollow pipes provided on the battery positive electrode (1) and the battery negative electrode (2) are respectively connected to an external liquid cooling system, and the heat of the battery cell (3) is taken away through the liquid cooling system.

5. The self-conducting heat-dissipating non-polar battery according to claim 1, wherein The power battery is a liquid electrolyte battery, a solid electrolyte battery, or a condensed state battery.

6. The self-conducting heat dissipation non-polar battery according to any one of claims 1 to 5, characterized in that, On the positive electrode (1) and the negative electrode (2) of the non-polar battery, a discharge detection sensor and / or a temperature detection sensor are provided.

7. An eddy current battery pack with self-conduction heat dissipation, characterized in that It includes a plurality of non-polar batteries with self-conducting heat dissipation as described in any one of claims 1 to 6; Among them, the battery positive electrodes and battery negative electrodes of two adjacent non-polar batteries are electrically connected in series with the non-polar batteries in turn through corresponding electrode contact rails (200), and the electrode contact rails (200) on the upper side of the non-polar batteries in the non-polar battery pack are staggered from the corresponding electrode contact rails (200) on the lower side in turn, constituting the overall electrical connection and mechanical fixation of the non-polar batteries in the non-polar battery pack; The non-polar battery is slidably inserted between the electrode contact rails on the upper side and the lower side of the non-polar battery pack to achieve the electrical connection and mechanical fixation of the non-polar battery pack; On the battery positive electrode and battery negative electrode of the non-polar battery, liquid inlet and outlet interfaces for connecting the liquid cooling system (100) are respectively provided, and an external liquid cooling system (100) is connected to directly dissipate heat from the battery cells (3) of the power battery.

8. The self-conducting heat dissipation non-polar battery pack according to claim 7, characterized in that, The non-polar battery pack further includes a first heat dissipation substrate (110) and a second heat dissipation substrate (120); The electrode contact rails are respectively fixedly installed on the first heat dissipation substrate (110) and the second heat dissipation substrate (120) and face the non-polar battery direction; the electrode contact rails are electrically insulated from the first heat dissipation substrate (110) and the second heat dissipation substrate (120).

9. The self-conducting heat-dissipating non-polar battery pack according to claim 7, characterized in that The connection devices between the liquid inlet and outlet interfaces of the battery positive electrode and battery negative electrode and the external liquid cooling system (100) are sliding ball valves (130).

10. The self-conducting heat-dissipating non-polar battery pack according to claim 8, characterized in that, The first heat dissipation substrate (110) is provided with a first liquid cooling interface (111), and the second heat dissipation substrate (120) is provided with a second liquid cooling interface (121). The first liquid cooling interface (111) and the second liquid cooling interface (121) are connected to the cooling system (100); Corresponding to the positive electrode side and negative electrode side of each non-polar battery, the first heat dissipation substrate (110) and the second heat dissipation substrate (120) are respectively provided with a pair of sliding ball valves (130), which are arranged to be connected to the hollow pipes inside the battery positive electrode (1) or battery negative electrode (2) of the non-polar battery, forming a heat dissipation path for the battery positive electrode (1) and the battery negative electrode (2).

11. The self-conducting heat-dissipating non-polar battery pack according to any one of claims 7, 8, 9, or 10, wherein The cross-section of the electrode contact rail is in the shape of "E". A plurality of elastic contact electrodes are respectively provided on the bottom and the inner sides of the two side edges of the electrode contact rail, which respectively form mechanical and electrical contacts with the bottom surface of the battery positive electrode (1), the battery negative electrode (2) and the covering surface on the side of the battery cell (3); a limiting grid is provided at the bottom of the electrode contact rail, and the limiting grid controls the fixed interval between adjacent non-polar batteries.

12. An electrodeless battery with discharge detection, characterized in that, The non-polar battery includes a battery positive electrode (1), a battery negative electrode (2), a battery cell (3) and a battery cell insulating sleeve, and the battery cell insulating sleeve wraps the battery cell (3); The battery cell (3) is in a cuboid structure, the length of the battery cell is greater than the height of the battery cell, and the length of the battery cell is greater than the thickness of the battery cell stack; The battery cell (3) includes a battery cell positive electrode plate (12), a battery cell positive electrode (13), a separator (30), a battery cell negative electrode plate (22) and a battery cell negative electrode (23); a separator (30) is arranged between the battery cell positive electrode plate (12) and the battery cell negative electrode plate (22); The battery cell positive electrode (13) constitutes the upper edge in the length direction of the battery cell positive electrode plate (12), and the upper edge part is not coated with the positive electrode dressing; The negative electrode (23) of the battery cell is configured as the lower edge in the length direction of the negative electrode sheet (22) of the battery cell, and this lower edge part is not coated with the negative electrode dressing; The positive electrode (1) of the battery is electrically connected to the positive electrode (13) of the battery cell to form an electrical conduction and heat conduction path of the battery cell; The negative electrode (2) of the battery is electrically connected to the negative electrode (23) of the battery cell to form an electrical conduction and heat conduction path of the battery cell; There is no electrical short circuit between the positive electrode (1) and the negative electrode (2) of the battery; On the positive electrode (1) and the negative electrode (2) of the non-polar battery, a discharge detection sensor and / or a temperature sensor are provided.

13. The non-polar battery with discharge detection according to claim 12, characterized in that, The positive electrode (1) of the battery is of a housing structure, and the upper part of the housing is a hollow pipe; the positive electrode housing of the battery extends along the outer surface of the battery cell (3) towards the negative electrode (2) of the battery and at least partially covers the battery cell (3); the positive electrode (1) of the battery is electrically connected to the positive electrode (13) of the battery cell to form an electrical conduction and heat conduction path of the battery cell; The negative electrode (2) of the battery is of a housing structure, and the upper part of the housing is a hollow pipe; the negative electrode housing of the battery extends along the outer surface of the battery cell (3) towards the positive electrode (1) of the battery and at least partially covers the battery cell (3); the negative electrode (2) of the battery is electrically connected to the negative electrode (23) of the battery cell to form an electrical conduction and heat conduction path of the battery cell.

14. The non-polar battery with discharge detection according to claim 13, wherein The positive electrode (1) and the negative electrode (2) of the battery form a part of the housing structure of the battery cell (3).

15. The electrodeless battery with discharge detection according to claim 13, wherein The positive electrode (1) of the battery is provided with a positive electrode opening, and the positive electrode (13) of the battery cell passes through the opening from the positive electrode of the battery cell and is connected to the positive electrode (1) of the battery to form an electromechanical integration, having the dual functions of electrical conduction and heat conduction; The negative electrode (2) of the battery is provided with a negative electrode opening, and the negative electrode (23) of the battery cell passes through the opening from the positive electrode of the battery cell and is connected to the negative electrode (2) of the battery to form an electromechanical integration, having the dual functions of electrical conduction and heat conduction.

16. The electrodeless battery with discharge detection according to claim 15, characterized in that, The hollow pipes provided on the positive electrode (1) and the negative electrode (2) of the battery are respectively connected to an external liquid cooling system, and the heat of the battery cell (3) is removed through the liquid cooling system.

17. The non-polar battery with discharge detection according to claim 12, characterized in that, The power battery is a liquid electrolyte battery, a solid electrolyte battery or a condensed state battery.

18. An electrodeless battery pack with discharge detection, characterized in that, It includes a plurality of non-polar batteries with discharge detection as described in any one of claims 12 to 17; Among them, the positive electrodes and negative electrodes of two adjacent non-polar batteries are sequentially electrically connected in series through the corresponding electrode contact rails (200), and the electrode contact rails (200) on the upper side and the corresponding electrode contact rails (200) on the lower side of the non-polar batteries in the non-polar battery pack are sequentially staggered, constituting the overall electrical connection and mechanical fixation of the non-polar batteries in the non-polar battery pack; The non-polar battery is slidably inserted between the electrode contact rails on the upper side and the lower side of the non-polar battery pack to achieve the electrical connection and mechanical fixation of the non-polar battery pack; On the positive electrode and the negative electrode of the non-polar battery, liquid inlet and outlet interfaces for connecting the liquid cooling system (100) are respectively provided, and an external liquid cooling system (100) is connected to directly dissipate heat from the battery cell (3) of the power battery.

19. The electrodeless battery pack with discharge detection according to claim 18, characterized in that, The non-polar battery pack further includes a first heat dissipation substrate (110) and a second heat dissipation substrate (120); The electrode contact rails are respectively fixedly installed on the first heat dissipation substrate (110) and the second heat dissipation substrate (120) and face the direction of the non-polar battery; there is electrical insulation between the electrode contact rails and the first heat dissipation substrate (110) and the second heat dissipation substrate (120).

20. The non-polar battery pack with discharge detection according to claim 19, characterized in that, The connecting device between the liquid inlet and outlet interfaces of the battery positive electrode and the battery negative electrode and the external liquid cooling system (100) is a sliding ball valve (130).

21. The non-polar battery pack with discharge detection according to any one of claims 18 to 20, characterized in that, The cross-section of the electrode contact rail is in the shape of "E". A plurality of elastic contact electrodes are respectively provided on the bottom and the inner sides of both sides of the electrode contact rail, and form mechanical and electrical contacts with the bottom surface of the battery positive electrode (1), the battery negative electrode (2), and the covering surface on the side of the battery cell (3); a limiting grid is arranged at the bottom of the electrode contact rail, and the limiting grid controls the fixed interval between adjacent non-polar batteries.

22. An electric vehicle, characterized in that, It includes the non-polar battery pack according to any one of claims 7 to 11 or 18 to 21.

23. An electric ship, characterized in that, It includes the non-polar battery pack according to any one of claims 7 to 11 or 18 to 21.

24. An electric aircraft, characterized in that, It includes the non-polar battery pack according to any one of claims 7 to 11 or 18 to 21.

25. A degaussing system for an electric ship, characterized in that, It includes the non-polar battery pack according to any one of claims 7 to 11 or 18 to 21.

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