Battery cell of lithium ion battery and lithium ion battery

A lithium-ion battery and cell technology, applied in the field of lithium-ion batteries, can solve the problems of reducing battery production efficiency, affecting battery consistency, and low battery production efficiency, so as to improve rate performance, reduce self-discharge rate, and improve stability Effect

Active Publication Date: 2016-02-24
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production efficiency of batteries with this structure is low, the layers are easy to shift, and there are many burrs on the edge of the electrode sheet, which poses a great safety hazard. In addition, this type of battery has a large self-discharge.
For wound-type lithium bat

Method used

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  • Battery cell of lithium ion battery and lithium ion battery
  • Battery cell of lithium ion battery and lithium ion battery
  • Battery cell of lithium ion battery and lithium ion battery

Examples

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Embodiment Construction

[0034] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. The technical solution of the present invention will be described in various aspects below in conjunction with various figures and embodiments.

[0035] For the convenience of description below, the "left", "right", "upper" and "lower" referred to below are consistent with the left, right, up...

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Abstract

The invention discloses a battery cell of a lithium ion battery and the lithium ion battery. The battery cell of the lithium ion battery comprises a positive plate, a diaphragm and a negative plate. A plurality of positive pole lugs and a plurality of negative pole lugs are sequentially arranged on the unfolded positive plate and the unfolded negative plate; the positive plate and the negative plates are separated through the diaphragm and are wound to form the battery cell of the lithium ion battery, and the positive pole lugs and the negative pole lugs form a pole lug superposed structure or a pole lug staggered arrangement structure. According to the battery cell of the lithium ion battery and the lithium ion battery, the rate performance of the battery can be improved, the consistency of the battery cell can be improved, bunching and modularized expanding are facilitated, stable running is guaranteed, the service life is prolonged, safety performance can be improved, production efficiency is improved, the generation rate of edge burs of the plates is reduced, the self-discharge rate can be reduced, and stability of the battery is improved.

Description

technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a lithium-ion battery cell and a lithium-ion battery. Background technique [0002] At present, clean and efficient energy conversion energy storage devices such as lithium-ion batteries have been widely used. For the types of power lithium-ion batteries, there are mainly cylindrical, laminated aluminum-plastic film, wound square (aluminum shell), laminated square, etc. Cylindrical batteries have mature technology, high consistency, and can be designed with a high rate, but their capacity is low, and a large number of battery cells are required for electric vehicles, and the management of battery modules is more complicated, and the differences between battery cells will lead to battery pack life and performance degradation. The stacked battery has the advantage of high rate performance, but the process requirements are relatively complicated, and there is a probl...

Claims

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Application Information

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IPC IPC(8): H01M10/0587H01M2/30H01M10/0525H01M50/534H01M50/538H01M50/547
CPCH01M10/0525H01M10/0587H01M50/538H01M50/534H01M2220/20H01M4/02H01M10/0431H01M10/0459H01M2004/028
Inventor 钟宽林炳辉陈阳王文华刘洪明
Owner GREE ELECTRIC APPLIANCES INC
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