Secondary battery and automobile

A secondary battery and conductance technology, applied in the field of energy storage devices, can solve the problems of inability to connect tabs and connectors, short circuit of secondary batteries, large tab redundancy, etc., and achieve easy connection and reduced redundancy. , the effect of improving safety

Pending Publication Date: 2018-04-27
CONTEMPORARY AMPEREX TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The electrode assembly of the existing secondary battery includes a main body and tabs connected to the main body. The main body is usually wound into a multi-turn structure, and two tabs are arranged in each round. After bending, the tabs of this structure When connecting with the connector of the secondary battery, the bending of the tabs will cause the misalignment of the ends. The outermost tab has the largest misalignment relative to the innermost tab, and the greater the thickness of the tab, the greater the misalignment. If the tab is set relatively short, it may cause the outermost tab to be unable to connect with the connector. If the tab is set relatively long, the redundancy of the innermost tab formed by bending may be too large , it is easy to cause the tabs to be electrically connected to other components in the secondary battery, causing an internal short circuit in the secondary battery and causing a safety accident

Method used

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  • Secondary battery and automobile
  • Secondary battery and automobile
  • Secondary battery and automobile

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Embodiment Construction

[0089] The present application will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings. Among them, with figure 1 The shown placement position of the secondary battery is the object, and the height direction of the secondary battery is the height direction Z, the longitudinal direction of the secondary battery is the longitudinal direction X, and the thickness direction of the secondary battery is the thickness direction Y.

[0090] Such as Figure 1-16 As shown, the embodiment of the present application provides a secondary battery, including a top cover 100, a pole (such as a first pole 300 and a second pole 400), an electrode assembly 700 and a connector (such as a first connector 500 and the second connector 600), the pole is placed on the top cover 100; the electrode assembly 700 includes a body 710 and a plurality of conductive parts extending from the main body 710, and a plurality of conductive parts are...

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Abstract

The application relates to the technical field of energy-storing devices, in particular to a secondary battery and an automobile. The secondary battery comprises: a top cover; a pole arranged on the top cover; an electrode component including a body and a plurality of tabs extended out of the body and stacked, wherein the body is formed by jointly winding a first plate, a second plate and a diaphragm between the first plate and the second plate; a connector allowing the tabs to be electrically connected to the pole. The tabs are extended out of one side of the thickness direction of the body,are bent relative to the height direction and are connected to the connector. In assembly of the secondary battery, the electrode component is easy to connect with the connector; safety of the secondary battery can be improved.

Description

technical field [0001] The present application relates to the technical field of energy storage devices, in particular to a secondary battery and an automobile. Background technique [0002] Due to the advantages of high energy density and environmental friendliness, secondary batteries are widely used in electronic devices such as mobile phones and notebook computers. In recent years, in response to environmental issues, gasoline price issues, and energy storage issues, the application of secondary batteries has rapidly expanded to gasoline-electric hybrid vehicles, electric vehicles, and energy storage systems. [0003] The electrode assembly of the existing secondary battery includes a main body and tabs connected to the main body. The main body is usually wound into a multi-turn structure, and two tabs are arranged in each round. After bending, the tabs of this structure When connecting with the connector of the secondary battery, the bending of the tabs will cause the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/26H01M10/04H01M50/147H01M50/528H01M50/531H01M50/533H01M50/538H01M50/55H01M50/553
CPCH01M10/0431H01M2220/20H01M2200/30H01M50/553H01M50/55H01M50/533H01M50/531H01M50/147Y02E60/10H01M50/528Y02P70/50H01M10/045
Inventor 李想邢承友王鹏蔡如来
Owner CONTEMPORARY AMPEREX TECH CO
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