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Battery

A battery and casing technology, applied in the field of battery manufacturing, can solve the problems of electrode group deformation, winding core movement, and poor battery anti-vibration performance, so as to reduce the possibility of impact, increase connection positions, and improve anti-vibration ability.

Pending Publication Date: 2019-03-19
EVE ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the use and transportation of the battery, the winding core is easy to move in the battery casing or is vulnerable to external force impacts to cause deformation of the pole group, resulting in battery failure and even safety accidents
The existing battery has poor anti-vibration performance, and it is difficult to guarantee the safety and reliability of the battery in use

Method used

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Embodiment Construction

[0023] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct...

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Abstract

The invention discloses a battery. The battery comprises a shell, a coiled core and a cap assembly, wherein the coiled core is arranged on the shell, and the cap assembly is used for blocking an opening part of the shell; and the coiled core comprises an anode piece, a cathode piece and a diaphragm arranged between the anode piece and the cathode piece, an anode lug is arranged on the anode pieceand is connected with the cap assembly, at least two cathode lugs are arranged on the cathode piece at intervals, and each cathode lug is connected with the shell. At least cathode lugs are respectively connected with the shell, so that the connecting sites between the cathode lugs and the shell can be increased; and the coiled core is fixed through connecting multiple parts of the coiled core with the shell, so that the movement of the coiled core in an inner cavity of the shell can be reduced in the practical transportation process, the possibility that the coiled core is stricken by the shell due to the vibration is reduced, and the anti-impact capability of the battery is improved.

Description

technical field [0001] The invention relates to the technical field of battery manufacturing, in particular to a battery. Background technique [0002] The battery has many advantages such as good high-power charge and discharge performance, good temperature characteristics, long cycle life, and environmental protection, and is widely used in various electrical equipment. In particular, lithium-ion batteries not only have super large capacity, but also have the advantages of high power density, high energy density of rechargeable batteries, wide operating temperature range and long cycle life, and are widely used in mobile devices. The winding core in a lithium battery usually consists of a positive electrode sheet, a negative electrode sheet, and a separator. During the use and transportation of the battery, the winding core is easy to move in the battery casing or is vulnerable to external force impacts to cause deformation of the electrode group, resulting in battery fai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/26H01M10/0587H01M10/0525H01M50/538
CPCH01M10/0525H01M10/0587H01M50/538Y02E60/10Y02P70/50
Inventor 卜芳吴小娟祝媛林陈能徐飞船刘金成
Owner EVE ENERGY CO LTD
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