Novel cylindrical storage battery
A cylindrical battery technology, applied in the direction of secondary batteries, battery pack parts, circuits, etc., can solve the problems of positive and negative tab contact, entanglement, unfavorable high-power batteries, tab insulation layer battery explosion and combustion, etc. Achieve the effect of preventing internal short circuit and reasonable structure
Inactive Publication Date: 2013-01-16
李俊
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Problems solved by technology
Although the electrode structure is relatively simple, due to the limitations of the current large-length winding equipment, it is very easy to cause contact and entanglement between the positive and negative tabs, which is not conducive to the installation of large-power batteries and the design of heat dissipation measures. Implementation; especially when the battery is under extreme conditions such as overcharging, as the internal temperature of the battery rises, the insulation layer of the tabs will fail, which will easily cause the internal short circuit of the battery and cause explosion and combustion
Method used
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Embodiment Construction
[0021] A collector device 10 is also provided inside the housing 5, and the collector device 10 is mainly made of an insulating material, and the positive electrode tab 12 on the battery core 9 passes through the collector device 10 and passes through a conductor 14 Conducted with the internal electrode 4 , the negative electrode lug 11 passes through the collector device 10 and conducts with the negative electrode 6 through the conductor 14 .
[0022] The negative electrode tab 11 and the positive electrode tab 12 on the battery core 9 are kept mutually spaced and spaced by the collector device 10 .
[0023] Insulating gaskets 3 are provided between the positive electrode 1 and the case cover 7 , and between the case cover 7 and the internal electrode 4 .
[0024] A copper gasket 2 is also provided between the positive electrode 1 and the insulating gasket 3 .
[0025] A liquid injection hole 8 is also provided on the surface of the shell cover 7 .
[0026] An electrolytic ...
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The invention relates to a novel cylindrical storage battery. The battery mainly comprises a shell, and an inner electrode and a battery cell which are arranged in the shell, wherein the upper end of the shell is also provided with a shell cover; the surface of the shell cover is provided with a positive electrode and a negative electrode; one end of the positive electrode and one end of the negative electrode pass through the surface of the shell cover; any one of the positive electrode and the negative electrode is connected with the inner electrode, and the other electrode is communicated with the shell by the shell cover; a collector device mainly made of an insulating material is also arranged inside the shell; and electrode lugs of the positive electrode and the negative electrode on the battery cell pass through the collector device and are communicated with the inner electrode and the other electrode which is arranged on the shell cover by a conductor.
Description
technical field [0001] The invention relates to a battery, especially a novel cylindrical storage battery. Background technique [0002] Cylindrical battery is a relatively traditional battery structure, which has the advantages of large volume, space saving, and easy assembly and use. In the existing cylindrical batteries, the tabs are usually drawn out on the pole pieces by metal welding to form electrodes, the casing is used as the positive pole or the wires are drawn out at the bottom, and the negative pole is drawn out in the form of poles at the top. Although the electrode structure is relatively simple, due to the limitations of the current large-length winding equipment, it is very easy to cause contact and entanglement between the positive and negative tabs, which is not conducive to the installation of large-power batteries and the design of heat dissipation measures. Implementation; especially when the battery is under extreme conditions such as overcharging, as ...
Claims
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IPC IPC(8): H01M2/34H01M2/26H01M10/00H01M50/531H01M50/586H01M50/593
CPCY02E60/12Y02E60/10
Inventor 李俊李家林
Owner 李俊