Novel storage battery
By setting the thermally deformed metal in the battery and disconnecting the circuit to prevent spontaneous combustion or explosion caused by excessive temperature, the safety problem caused by excessive voltage during charging or use of the battery is solved.
Patent Information
- Application Number
- CN202420471576.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-03-12
AI Technical Summary
During charging or use, the voltage of the battery will cause a rapid rise in temperature due to excessive high voltage, which will lead to spontaneous combustion or explosion.
A new type of battery is designed. By setting a thermally deformed metal between the negative electrode conductive sheet and the stainless steel battery shell, the arc-shaped characteristics of the thermally deformed metal are used to disconnect the circuit when the temperature is too high to prevent explosion.
It effectively prevents rapid temperature rise and spontaneous combustion or explosion caused by excessive voltage, ensuring the safety of the battery.
Smart Images
Figure CN222620080U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of storage batteries, in particular to a new type of storage battery. Background Art
[0002] In people's daily life, electric energy is one of the most commonly used energy sources in social development. It was discovered in the 1870s. Because of its appearance, mankind has set off the second climax of industrialization in the history of development, becoming one of the three industrial revolutions in human history since the 18th century. It is not only economical and practical, but also clean and easy to control and convert. Therefore, it is widely used in various fields such as construction, production, and automobiles. However, in order to allow electric energy to leave the power generation device and be used separately in various mobile tools, people gradually invented the battery device.
[0003] The commonly used storage batteries now rely mainly on the movement of lithium ions between the positive and negative electrodes. When charging, the positive electrode of the battery receives electrons, while the negative electrode releases electrons. The lithium ions move from the positive electrode to the negative electrode and are embedded in the carbon material of the negative electrode. After charging is completed, the lithium ion concentrations on the positive and negative electrodes reach a balance; when discharging, electrons flow from the negative electrode to the positive electrode through an external circuit, and the lithium ions embedded in the negative electrode carbon material move back to the positive electrode. This movement process of electrons and lithium ions enables the battery to provide electrical energy.
[0004] Although this type of battery has the advantages of a high voltage platform, which makes it easy to form a battery power pack; high storage energy density; light weight; long service life of more than 6 years; high power tolerance, which makes it easy to start and accelerate with high intensity; low self-discharge rate, no memory effect; and strong adaptability to high and low temperatures, it has poor safety and is very prone to explosion when the temperature is too high. This is particularly obvious during the charging process. If the charging voltage is too high, the internal temperature will rise rapidly. After reaching the critical point, it will spontaneously combust in a very short time, leading to an explosion. Utility Model Content
[0005] The technical problem to be solved by the utility model is that during the process of charging or using the storage battery, due to excessively high voltage, the temperature will rise rapidly, thus causing spontaneous combustion or explosion.
[0006] In order to solve the above technical problems, the technical solution provided by the utility model is: a new type of storage battery, including positive and negative electrode foil rolls, stainless steel battery shells are arranged around the positive and negative electrode foil rolls, a battery cap separated by an insulating gasket is arranged on one side of the stainless steel battery shell, the battery cap passes through the insulating gasket, the stainless steel battery shell is connected to the negative end of the positive and negative electrode foil rolls through the negative electrode conductive sheet, and the battery cap is connected to the positive end of the positive and negative electrode foil rolls through the positive electrode conductive sheet, characterized in that: an H-shaped insulating shell is arranged between the positive and negative electrode foil rolls and the stainless steel battery shell, the negative electrode conductive sheet connected to the negative electrode of the positive and negative electrode foil rolls passes through the internal insulating layer of the H-shaped insulating shell, a heat-deformed metal is arranged between the negative electrode conductive sheet and the stainless steel battery shell, the heat-deformed metal is arc-shaped, and reset rods passing through the stainless steel battery shell and the H-shaped insulating shell, as well as a resisting rod located inside the H-shaped insulating shell, are respectively arranged on both sides of the heat-deformed metal.
[0007] As an improvement, the stainless steel battery shell is connected to the insulating gasket through body contact.
[0008] As an improvement, the thermally deformed metal is connected to the stainless steel battery shell via a reset rod.
[0009] As an improvement, a reset rod through-hole column is provided on one side of the stainless steel battery shell, and a reset rod cap connected by a sealant is provided above the reset rod through-hole column.
[0010] As an improvement, the thermally deformed metal and the negative electrode conductive sheet are connected by pins, the positive electrode conductive sheet is connected to the battery cap by glue, and the negative electrode conductive sheet and the positive electrode conductive sheet are connected to the positive and negative electrode foil rolls by body contact.
[0011] As an improvement, the battery cap, insulating gasket and stainless steel battery shell connection end are all sealed and fixed by sealant.
[0012] As an improvement, the normal state of the thermally deformed metal and the stainless steel battery shell is a normally open state.
[0013] The advantages of the utility model compared with the prior art are:
[0014] 1. This device has a heat-deformed metal between the negative electrode conductive sheet and the stainless steel battery shell to prevent the battery from overheating and causing an explosion.
[0015] 2. This device restarts the battery by pushing the heat-deformed metal through the reset rod, which will not cause the normal use of the battery after the temperature returns to normal. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is the overall structural diagram of a novel storage battery of the utility model.
[0017] Figure 2It is an exploded view of the overall structure of a new type of storage battery of the utility model.
[0018] Figure 3 The utility model is a structural diagram of an H-shaped insulating shell of a novel storage battery.
[0019] Figure 4 The utility model is a cross-sectional view of a stainless steel battery shell of a novel storage battery.
[0020] Figure 5 The utility model is a structural diagram of an insulating gasket of a novel storage battery.
[0021] Figure 6 The utility model is a structural diagram of a battery cap and a positive electrode conductive sheet of a novel storage battery.
[0022] As shown in the figure: 1. Positive and negative electrode foil rolls; 2. Stainless steel battery shell; 3. Insulating gasket; 4. Battery cap; 5. Negative electrode conductive sheet; 6. Positive electrode conductive sheet; 61. Retaining rod; 7. H-type insulating shell; 8. Thermally deformed metal; 81. Reset rod; 82. Reset rod through-hole column; 83. Reset rod cap. DETAILED DESCRIPTION
[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0024] As the instruction manual Figure 1 , 2 As shown, it includes a positive and negative electrode foil roll 1, and a stainless steel battery shell 2 is arranged around the positive and negative electrode foil roll 1. A battery cap 4 separated by an insulating gasket 3 is arranged on one side of the stainless steel battery shell 2, and the battery cap 4 passes through the insulating gasket 3. An H-shaped insulating shell 7 is arranged between the positive and negative electrode foil rolls 1 and the stainless steel battery shell 2. The stainless steel battery shell 2 is connected to the insulating gasket 3 through the body. A reset rod through-hole column 82 is arranged on one side of the stainless steel battery shell 2, and a reset rod cap 83 connected by a sealant is arranged above the reset rod through-hole column 82. The battery cap 4, the insulating gasket 3 and the connecting end of the stainless steel battery shell 2 are all sealed and fixed by sealant.
[0025] As the instruction manual Figure 1 , 3As shown in , 5 and 6, the stainless steel battery shell 2 is connected to the negative end of the positive and negative electrode foil roll 1 through the negative electrode conductive sheet 5, the battery cap 4 is connected to the positive end of the positive and negative electrode foil roll 1 through the positive electrode conductive sheet 6, the negative electrode conductive sheet 5 connected to the negative electrode of the positive and negative electrode foil roll 1 passes through the internal insulating layer of the H-type insulating shell 7, a thermally deformable metal 8 is provided between the negative electrode conductive sheet 5 and the stainless steel battery shell 2, and a reset rod 81 passing through the stainless steel battery shell 2 and the H-type insulating shell 7 and a resisting rod 61 located inside the H-type insulating shell 7 are respectively provided on both sides of the thermally deformable metal 8, the thermally deformable metal 8 is connected to the stainless steel battery shell 2 through the reset rod 81, the thermally deformable metal 8 and the negative electrode conductive sheet 5 are connected by a pin, the positive electrode conductive sheet 6 is connected to the battery cap 4 by glue, and the negative electrode conductive sheet 5 and the positive electrode conductive sheet 6 are connected to the positive and negative electrode foil roll 1 by body contact.
[0026] In the specific implementation of the utility model, the negative electrode conductive sheet 5 and the positive electrode conductive sheet 6 are respectively connected to the negative and positive ends of the positive and negative electrode foil rolls 1, and the connected positive and negative electrode foil rolls 1 are placed in the H-shaped insulating shell 7. The negative electrode conductive sheet 5 passes through the through hole of the H-shaped insulating shell 7, and the negative electrode conductive sheet 5 is connected to the thermally deformed metal 8 using a pin. One side of the thermally deformed metal 8 is fixed to one end of the blocking rod 61, and the other side is aligned with the through hole of the reset rod 81. The stainless steel battery shell 2 is sleeved on the outer wall of the H-shaped insulating shell 7, and the two are connected. The reset rod 81 is aligned with the through hole of the reset rod 81, the reset rod 81 is inserted into the reset rod through hole column 82, and then the reset rod cap 83 and the reset rod through hole column 82 are sealed and connected with the sealant; the positive electrode conductive sheet 6 and the battery cap 4 are glued to the battery cap 4 without affecting the conductivity, the insulating gasket 3 is put on the outer wall of the battery cap 4, and then the open side of the stainless steel battery shell 2 is pressed onto the insulating gasket 3 by a machine, and finally the battery cap 4, the insulating gasket 3 and the stainless steel battery shell 2 are sealed with sealant.
[0027] When in use, first press the reset rod 81 under the reset rod cap 83, and push the heat-deformed metal 8 to the resistance rod 61 through the reset rod 81. Under the clamping of the two, the heat-deformed metal 8 becomes straight, so that the heat-deformed metal 8 is connected to the stainless steel battery shell 2, so that the internal circuit of the battery is connected, and the battery is turned on. When discharging or charging, if the heat-deformed metal 8 encounters too high a current passing through, the heat generated by the current will cause the heat-deformed metal 8 to bend and deform (the deformation temperature of the heat-deformed metal 8 is lower than the explosion temperature of the battery, thereby disconnecting the circuit). Because the heat-deformed metal 8 and the stainless steel battery shell 2 are in a normally open state, the circuit will continue to be disconnected without human intervention until the temperature returns to normal, and then the reset rod 81 under the reset rod cap 83 is manually pressed again to connect the internal circuit of the battery and turn on the battery again.
[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A novel storage battery, comprising a positive and negative electrode foil roll (1), wherein the positive and negative electrode foil roll (1) is surrounded by a stainless steel battery shell (2), and one side of the stainless steel battery shell (2) is provided with a battery cap (4) separated by an insulating gasket (3), and the battery cap (4) passes through the insulating gasket (3), and the stainless steel battery shell (2) is connected to the negative end of the positive and negative electrode foil roll (1) through a negative electrode conductive sheet (5), and the battery cap (4) is connected to the positive end of the positive and negative electrode foil roll (1) through a positive electrode conductive sheet (6), characterized in that: An H-shaped insulating shell (7) is provided between the positive and negative electrode foil rolls (1) and the stainless steel battery shell (2); a negative electrode conductive sheet (5) connected to the negative electrode of the positive and negative electrode foil rolls (1) passes through the internal insulating layer of the H-shaped insulating shell (7); a thermally deformable metal (8) is provided between the negative electrode conductive sheet (5) and the stainless steel battery shell (2); the thermally deformable metal (8) is arc-shaped; reset rods (81) passing through the stainless steel battery shell (2) and the H-shaped insulating shell (7) are provided on both sides of the thermally deformable metal (8), respectively, and a resisting rod (61) located inside the H-shaped insulating shell (7).
2. A novel storage battery according to claim 1, characterized in that: The stainless steel battery shell (2) is connected to the insulating gasket (3) through body contact.
3. A novel storage battery according to claim 2, characterized in that: The thermally deformed metal (8) is connected to the stainless steel battery shell (2) via a reset rod (81).
4. A novel storage battery according to claim 3, characterized in that: A reset rod through-hole column (82) is provided on one side of the stainless steel battery shell (2), and a reset rod cap (83) connected by a sealant is provided above the reset rod through-hole column (82).
5. A novel storage battery according to claim 4, characterized in that: The thermally deformed metal (8) and the negative electrode conductive sheet (5) are connected by pins, the positive electrode conductive sheet (6) is connected to the battery cap (4) by glue, and the negative electrode conductive sheet (5) and the positive electrode conductive sheet (6) are connected to the positive and negative electrode foil rolls (1) by body contact.
6. A novel storage battery according to claim 5, characterized in that: The battery cap (4), the insulating gasket (3) and the connecting ends of the stainless steel battery shell (2) are all sealed and fixed by means of a sealant.