Electrode assembly and rechargeable battery
An electrode assembly, electrode technology, applied in the direction of electrode carrier/current collector, non-aqueous electrolyte battery, electrolyte battery manufacturing, etc., can solve the problems of lithium ion battery fire, explosion, short circuit of positive electrode member and negative electrode member, etc. The effect of electrical conductivity
Active Publication Date: 2020-11-06
CONTEMPORARY AMPEREX TECH CO
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Problems solved by technology
However, in the nail-piercing experiment, since the aluminum foil (copper foil) will produce burrs in the puncture of the nail, the burrs will directly overlap the negative electrode member (positive electrode member), which will cause the inside of the positive electrode member and the negative electrode member. Short circuit, causing fire and explosion of lithium-ion battery
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[0041] 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. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work fall within the protection scope of the present invention.
[0042] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authorized Specification.
[0043] In the description of the present invention, it shou...
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The invention relates to the technical field of rechargeable batteries, in particular to an electrode assembly and a rechargeable battery. The electrode assembly includes an electrode member, and theelectrode member comprises an electrode body and a conductive structure. The electrode body comprises an insulating substrate and a conductive layer arranged on the surface of the insulating substrate, and the conductive layer has a first portion coated with an active material and a second portion extending from the first portion and not coated with the active material. The conductive structure iswelded with the second part; in the electrode body, the part, corresponding to the second part of the conductive layer, of the insulating substrate and the second part of the conductive layer form anelectric guide part; the electrode assembly is provided with a plurality of electric guide parts and a plurality of conductive structures, the plurality of electric guide parts are arranged in a stacked mode, and a first conductive part of one conductive structure and a first conductive part or a second conductive part of the other conductive structure are arranged between every two adjacent electric guide parts. Based on this, the conductivity of the electrode assembly can be effectively improved.
Description
[0001] This application is a divisional application based on the invention with the application number 201711172440.5, the application date is November 22, 2017, the applicant is Ningde Times New Energy Technology Co., Ltd., and the invention name is "electrode component, electrode assembly and rechargeable battery" . technical field [0002] The invention relates to the technical field of rechargeable batteries, in particular to an electrode assembly and a rechargeable battery. Background technique [0003] As a rechargeable battery, lithium-ion batteries are widely used in portable electronic devices such as mobile phones and notebooks, as well as electric vehicles and electric bicycles due to their advantages such as high energy density, high power density, many cycle times, and long storage time. on electric vehicles. [0004] The electrode components of lithium-ion batteries are usually made of metal materials, for example, the positive electrode components are usually...
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IPC IPC(8): H01M2/26H01M4/13H01M10/0525H01M10/058H01M50/531H01M50/534H01M50/536H01M50/54
CPCH01M4/13H01M10/0525H01M10/058H01M50/536H01M50/54H01M50/534H01M4/667H01M10/0431H01M10/052Y02E60/10Y02P70/50H01M4/70
Inventor 邢承友李想朱涛声王鹏郑于炼
Owner CONTEMPORARY AMPEREX TECH CO