Soft package lithium ion battery with heating function

Abstract

The utility model discloses a soft package lithium ion battery with a heating function, which comprises a soft package lithium ion battery main body, an interface arranged on the outer wall of the soft package lithium ion battery main body, a sleeve shell sleeved outside the soft package lithium ion battery main body, and a processing assembly arranged inside the soft package lithium ion battery main body, when the soft package lithium ion battery main body needs to be heated, the heating layer starts to work, the heating layer heats the battery main body through the macromolecular bonding layer, and under the limitation of the macromolecular bonding layer, heat can be uniformly transferred and is prevented from being gathered at one part of the battery main body, so that the battery main body is prevented from being damaged. The heated soft package lithium ion battery main body can cope with cold weather, the charging efficiency of the soft package lithium ion battery main body can be improved, when the heating layer heats the battery body, heat dissipation of the battery body needs to be slow, heat preservation treatment can be conducted through the heat preservation layer fixedly installed on the outer wall of the heating layer, and energy consumption of the heating layer is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of soft-pack lithium-ion battery heating, in particular to a soft-pack lithium-ion battery with a heating function. Background Art

[0002] Soft-pack lithium-ion battery is a battery cell that uses aluminum-plastic film as packaging material. Compared with metal shell batteries, it has better cycle performance and design flexibility. Its appearance can be changed into any shape and can be made thinner. Its internal electrode sheet structure includes stacked type and wound type. Its external surface uses soft composite aluminum-plastic film as packaging material. General soft-pack lithium-ion batteries need to have heating function when in use, which makes the application of soft-pack lithium-ion batteries in low temperature environment unaffected.

[0003] For example, Chinese patent CN210224229U discloses a soft-pack lithium-ion battery with a heating function. The soft-pack plastic film of the lithium-ion battery with a heating function is applied to the soft-pack lithium-ion battery, which effectively solves the problems of easy lithium precipitation, reduced capacity, and short cycle life of the soft-pack lithium-ion battery in a low-temperature environment, and effectively improves the low-temperature performance of the soft-pack lithium-ion battery.

[0004] Although this structure can heat the soft-pack lithium-ion battery, the heat preservation effect of the heated soft-pack lithium-ion battery is poor, resulting in a shorter heat storage of the soft-pack lithium-ion battery. Therefore, we propose a soft-pack lithium-ion battery with a heating function that can keep the heated soft-pack lithium-ion battery warm, slow down the heat consumption of the soft-pack lithium-ion battery, and improve the heating effect of the soft-pack lithium-ion battery. Utility Model Content

[0005] The purpose of the utility model is to provide a soft-pack lithium-ion battery with a heating function to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a soft-pack lithium-ion battery with a heating function, comprising a soft-pack lithium-ion battery body, an interface is opened on the outer wall of the soft-pack lithium-ion battery body, a sleeve is provided on the outside of the soft-pack lithium-ion battery body, and a processing component is arranged inside the soft-pack lithium-ion battery body, the processing component includes a heating component arranged inside the soft-pack lithium-ion battery body, and a protective component is arranged outside the heating component.

[0007] Preferably, the heating assembly includes a battery body arranged inside the soft-pack lithium-ion battery body, the outer wall of the battery body is fixedly installed with a polymer bonding layer, the outer wall of the polymer bonding layer is fixedly installed with a heating layer, the outer wall of the heating layer is fixedly installed with a thermal insulation layer, the outer wall of the thermal insulation layer is fixedly installed with an insulating layer, the outer wall of the insulating layer is fixedly installed with an internal thermal monitoring layer, and the outer wall of the internal thermal monitoring layer is fixedly installed with a connecting layer.

[0008] Preferably, the protection component includes a data transmission layer fixedly installed on the outer wall of the connecting layer, the data transmission layer outer wall is fixedly installed with a seismic layer, the seismic layer outer wall is fixedly installed with a heat-resistant layer, the temperature-resistant layer outer wall is fixedly installed with a corrosion-resistant layer, the corrosion-resistant layer outer wall is fixedly installed with a wear-resistant layer, the wear-resistant layer outer wall is fixedly installed with an external heat monitoring layer, and the external heat monitoring layer outer wall is fixedly installed with a shell.

[0009] Preferably, the polymer bonding layer is a thermally conductive material, and the connecting layer is an adhesive material. Under the restriction of the polymer bonding layer, the heating layer can transfer heat to the battery body evenly, and under the restriction of the connecting layer, the heating component and the protective component can be stably connected.

[0010] Preferably, the internal heat monitoring layer is connected to the heating layer signal, and the internal heat monitoring layer is connected to the external heat monitoring layer signal. Under these limitations, the temperature of the battery body can be monitored in real time to control the heating layer to appropriately heat the battery body.

[0011] Preferably, the data transmission layer is connected to the external heat monitoring layer signal, and the side of the data transmission layer away from the external heat monitoring layer is connected to the internal heat monitoring layer signal. The data transmission layer serves as the signal center between the internal heat monitoring layer and the external heat monitoring layer, and can flexibly adjust the heating layer to adjust the battery body to the optimal temperature.

[0012] Preferably, the outer wall of the shell is fixedly mounted to the inner wall of the casing, and the shell is made of temperature-resistant rubber material, which can provide all-round protection for objects inside the shell.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The soft-pack lithium-ion battery with heating function is composed of a heating component as one component. When the soft-pack lithium-ion battery body needs to be heated, the heating layer starts to work, and the heating layer heats the battery body through the polymer bonding layer. Under the restriction of the polymer bonding layer, the heat can be evenly transferred to avoid heat accumulation in one place of the battery body. The heated soft-pack lithium-ion battery body can cope with cold weather and can speed up the charging efficiency of the soft-pack lithium-ion battery body. When the heating layer heats the battery body, it is necessary to slow down the heat dissipation. The insulation layer fixedly installed on the outer wall of the heating layer can be used for insulation treatment to reduce the energy consumption of the heating layer. The insulation layer arranged on the outer wall of the insulation layer can be isolated from the external temperature to improve the insulation effect. The internal heat monitoring layer arranged on the outer wall of the insulation layer can monitor the temperature of the battery body in real time. When the temperature of the battery body is low, the heating instruction can be transmitted to the heating layer through the internal heat monitoring layer to heat the battery body. When the temperature of the battery body reaches the requirement, the internal heat monitoring layer controls the heating layer to stop heating so that the temperature of the battery body is uniform. This structure can stabilize the temperature regulation of the battery body heating, so that the heating effect of the battery body is better.

[0015] 2. The soft-pack lithium-ion battery with heating function is composed of a protective component. When the main body of the soft-pack lithium-ion battery is in daily use, it needs to be protected. The battery body can be shockproofed by the shock-resistant layer, and the temperature-resistant layer can resist the cold temperature of the outside to avoid damage to the battery body. Under the protection of the corrosion-resistant layer, corrosive objects can be prevented from damaging the battery body to increase the service life of the battery body. When the main body of the soft-pack lithium-ion battery is scratched, the objects inside the shell can be protected under the protection of the wear-resistant layer. The external temperature is monitored by the external heat monitoring layer, and the data is transmitted to the internal heat monitoring layer through the data transmission layer. The internal heat monitoring layer controls the operation of the heating layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional appearance diagram of the structure of the utility model.

[0017] Figure 2 It is a three-dimensional cross-sectional view of the structure of the utility model.

[0018] Figure 3 This is a diagram of the heating component structure of the utility model.

[0019] Figure 4 This is a diagram of the structural protection component of the utility model.

[0020] In the figure: 1. soft-pack lithium-ion battery body; 2. interface; 3. casing; 4. processing component; 41. heating component; 42. protection component; 411. battery body; 412. polymer bonding layer; 413. heating layer; 414. insulation layer; 415. insulation layer; 416. internal heat monitoring layer; 417. connection layer; 421. data transmission layer; 422. shock-resistant layer; 423. temperature-resistant layer; 424. corrosion-resistant layer; 425. wear-resistant layer; 426. external heat monitoring layer; 427. casing. DETAILED DESCRIPTION

[0021] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0022] Example 1

[0023] A preferred embodiment of a soft-pack lithium-ion battery with heating function provided by the utility model is as follows: Figures 1 to 4 As shown: a soft-pack lithium-ion battery with a heating function, comprising a soft-pack lithium-ion battery body 1;

[0024] An interface 2 is provided on the outer wall of the soft-pack lithium-ion battery body 1;

[0025] The soft-pack lithium-ion battery body 1 is covered with a casing 3;

[0026] And a processing component 4 is arranged inside the soft-pack lithium-ion battery body 1, the processing component 4 includes a heating component 41 arranged inside the soft-pack lithium-ion battery body 1, the heating component 41 includes a battery body 411 arranged inside the soft-pack lithium-ion battery body 1, a polymer bonding layer 412 is fixedly installed on the outer wall of the battery body 411, a heating layer 413 is fixedly installed on the outer wall of the polymer bonding layer 412, a heat preservation layer 414 is fixedly installed on the outer wall of the heating layer 413, an insulating layer 415 is fixedly installed on the outer wall of the heat preservation layer 414, an internal heat monitoring layer 416 is fixedly installed on the outer wall of the insulating layer 415, and a connecting layer 417 is fixedly installed on the outer wall of the internal heat monitoring layer 416.

[0027] In this embodiment, when it is necessary to heat the soft-pack lithium-ion battery body 1, the heating layer 413 starts to work, and the heating layer 413 heats the battery body 411 through the polymer bonding layer 412. Under the restriction of the polymer bonding layer 412, the heat can be evenly transferred to avoid heat accumulation in the battery body 411. The heated soft-pack lithium-ion battery body 1 can cope with cold weather and can speed up the charging efficiency of the soft-pack lithium-ion battery body 1. When the heating layer 413 heats the battery body 411, it is necessary to slow down the heat dissipation. The heat preservation treatment can be performed by the heat preservation layer 414 fixedly installed on the outer wall of the heating layer 413 to reduce the energy consumption of the heating layer 413. The insulating layer 415 arranged on the outer wall of the insulation layer 414 can isolate the external temperature to improve the insulation effect. The internal heat monitoring layer 416 arranged on the outer wall of the insulation layer 415 can monitor the temperature of the battery body 411 in real time. When the temperature of the battery body 411 is low, the heating instruction can be transmitted to the heating layer 413 through the internal heat monitoring layer 416 to heat the battery body 411. When the temperature of the battery body 411 reaches the requirement, the internal heat monitoring layer 416 controls the heating layer 413 to stop heating so that the temperature of the battery body 411 is uniform. This structure can stabilize the temperature regulation of the heating of the battery body 411, so that the heating effect of the battery body 411 is better.

[0028] Furthermore, the polymer bonding layer 412 is a thermally conductive material, and the connecting layer 417 is an adhesive material. Under the restriction of the polymer bonding layer 412, the heating layer 413 can transfer heat to the battery body 411 evenly, and under the restriction of the connecting layer 417, the heating component 41 and the protective component 42 can be stably connected.

[0029] Furthermore, the internal heat monitoring layer 416 is signal-connected to the heating layer 413 , and the internal heat monitoring layer 416 is signal-connected to the external heat monitoring layer 426 . Under these limitations, the temperature of the battery body 411 can be monitored in real time to control the heating layer 413 to appropriately heat the battery body 411 .

[0030] Example 2

[0031] Based on Example 1, a preferred embodiment of a soft-pack lithium-ion battery with a heating function provided by the utility model is as follows: Figures 1 to 4 As shown: the protection component 42 includes a data transmission layer 421 fixedly installed on the outer wall of the connecting layer 417, the outer wall of the data transmission layer 421 is fixedly installed with a seismic layer 422, the outer wall of the seismic layer 422 is fixedly installed with a temperature-resistant layer 423, the outer wall of the temperature-resistant layer 423 is fixedly installed with a corrosion-resistant layer 424, the outer wall of the corrosion-resistant layer 424 is fixedly installed with a wear-resistant layer 425, the outer wall of the wear-resistant layer 425 is fixedly installed with an external heat monitoring layer 426, and the outer wall of the external heat monitoring layer 426 is fixedly installed with a shell 427.

[0032] In this embodiment, when the soft-pack lithium-ion battery body 1 is in daily use, it needs to be protected. The battery body 411 can be shockproofed by the shock-resistant layer 422, and the temperature-resistant layer 423 can resist the cold temperature of the outside world to avoid damage to the battery body 411. Under the protection of the corrosion-resistant layer 424, corrosive objects can be prevented from damaging the battery body 411 to increase the service life of the battery body 411. When the soft-pack lithium-ion battery body 1 is scratched, under the protection of the wear-resistant layer 425, the internal objects of the casing 3 can be protected, and the external temperature can be monitored by the external heat monitoring layer 426, and then the data is transmitted to the internal heat monitoring layer 416 through the data transmission layer 421, and the internal heat monitoring layer 416 controls the operation of the heating layer 413.

[0033] Furthermore, the data transmission layer 421 is connected to the external heat monitoring layer 426 by signal, and the side of the data transmission layer 421 away from the external heat monitoring layer 426 is connected to the internal heat monitoring layer 416 by signal. The data transmission layer 421 serves as the signal center between the internal heat monitoring layer 416 and the external heat monitoring layer 426, and can flexibly adjust the heating layer 413 to adjust the battery body 411 to the optimal temperature.

[0034] In addition, the outer wall of the shell 427 is fixedly installed with the inner wall of the casing 3, and the shell 427 is made of temperature-resistant rubber material, which can provide all-round protection for objects inside the shell 427.

[0035] The above is only an illustrative specific implementation method of the utility model, and is not intended to limit the scope of the utility model. Any equivalent changes and modifications made by any technician in this field without departing from the concept and principle of the utility model should fall within the scope of protection of the utility model. It should also be noted that the various components of the utility model are not limited to the above-mentioned overall application. The various technical features described in the specification of the utility model can be selected one by one or multiple ones can be selected and used in combination according to actual needs. Therefore, the utility model should naturally cover other combinations and specific applications related to the utility model points of this case.

Claims

1. A soft-pack lithium-ion battery with a heating function, comprising a soft-pack lithium-ion battery body (1); The outer wall of the soft-pack lithium-ion battery body (1) is provided with an interface (2); The soft-pack lithium-ion battery body (1) is externally covered with a casing (3); and a processing assembly (4) arranged inside a soft-pack lithium-ion battery body (1), characterized in that: The processing component (4) comprises a heating component (41) arranged inside the soft-pack lithium-ion battery body (1), and a protection component (42) is arranged outside the heating component (41).

2. The soft-pack lithium-ion battery with heating function according to claim 1, characterized in that: The heating assembly (41) comprises a battery body (411) arranged inside a soft-pack lithium-ion battery body (1); a polymer bonding layer (412) is fixedly mounted on an outer wall of the battery body (411); a heating layer (413) is fixedly mounted on an outer wall of the polymer bonding layer (412); a heat preservation layer (414) is fixedly mounted on an outer wall of the heating layer (413); an insulating layer (415) is fixedly mounted on an outer wall of the heat preservation layer (414); an internal heat monitoring layer (416) is fixedly mounted on an outer wall of the insulating layer (415); and a connecting layer (417) is fixedly mounted on an outer wall of the internal heat monitoring layer (416).

3. The soft-pack lithium-ion battery with heating function according to claim 1, characterized in that: The protection component (42) comprises a data transmission layer (421) fixedly mounted on the outer wall of the connection layer (417); an anti-seismic layer (422) is fixedly mounted on the outer wall of the data transmission layer (421); a temperature-resistant layer (423) is fixedly mounted on the outer wall of the anti-seismic layer (422); a corrosion-resistant layer (424) is fixedly mounted on the outer wall of the temperature-resistant layer (423); a wear-resistant layer (425) is fixedly mounted on the outer wall of the corrosion-resistant layer (424); an external heat monitoring layer (426) is fixedly mounted on the outer wall of the wear-resistant layer (425); and a shell (427) is fixedly mounted on the outer wall of the external heat monitoring layer (426).

4. The soft-pack lithium-ion battery with heating function according to claim 2, characterized in that: The polymer bonding layer (412) is a heat-conducting material, and the connecting layer (417) is an adhesive material.

5. The soft-pack lithium-ion battery with heating function according to claim 2, characterized in that: The internal heat monitoring layer (416) is signal-connected to the heating layer (413), and the internal heat monitoring layer (416) is signal-connected to the external heat monitoring layer (426).

6. The soft-pack lithium-ion battery with heating function according to claim 3, characterized in that: The data transmission layer (421) is signal-connected to the external heat monitoring layer (426), and the side of the data transmission layer (421) away from the external heat monitoring layer (426) is signal-connected to the internal heat monitoring layer (416).

7. The soft-pack lithium-ion battery with heating function according to claim 3, characterized in that: The outer wall of the shell (427) is fixedly mounted to the inner wall of the casing (3), and the shell (427) is made of temperature-resistant rubber material.

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