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Electrode sheet of lithium-ion battery and lithium-ion battery

A lithium-ion battery and electrode sheet technology, applied in battery electrodes, non-aqueous electrolyte battery electrodes, secondary battery repair/maintenance, etc., can solve problems such as poor high temperature safety performance, lithium-ion battery fire risk, etc., and improve use safety. Effects of Sex and Reliability

Inactive Publication Date: 2019-05-03
YINLONG ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, one of the objects of the present invention is to provide an electrode sheet of a lithium ion battery and a lithium ion battery to solve the problem that the high temperature safety performance of the lithium ion battery in the prior art is poor. During charging and discharging, there is a risk of fire in lithium-ion batteries

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  • Electrode sheet of lithium-ion battery and lithium-ion battery
  • Electrode sheet of lithium-ion battery and lithium-ion battery

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Embodiment Construction

[0024] The present invention is described below based on the embodiments, and those skilled in the art should understand that the drawings provided here are for the purpose of illustration, and the drawings are not necessarily drawn to scale.

[0025] Unless the context clearly requires, throughout the specification and claims, "comprises", "comprises" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive meaning; that is, "including but not limited to" meaning.

[0026] This application proposes an electrode sheet of a lithium ion battery and a lithium ion battery. The lithium ion electrode sheet is provided with a flame retardant layer to suppress the ignition of the lithium ion battery at high temperature and improve the efficiency of the lithium ion battery during use and during charging and discharging. safety and reliability. Moreover, when the lithium-ion battery is out of control and has caught fire, the flame retardant l...

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Abstract

The invention provides an electrode sheet for a lithium-ion battery and the lithium-ion battery. The electrode sheet comprises a pole piece body, the surface of the pole piece body is coated with a coating layer, and one side of the coating layer away from the pole piece body is coated with a flame retardant layer to inhibit the lithium-ion battery from igniting at a high temperature. According tothe invention, the flame retardant layer disposed on the electrode sheet in the invention can effectively reduce the risk of the turning of lithium-ion battery due to the uncontrollable temperature rise of the lithium-ion battery during the use process and during the charging and discharging process of the lithium-ion battery, and the use safety and reliability of the lithium-ion battery are improved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to an electrode sheet of a lithium ion battery and the lithium ion battery. Background technique [0002] Lithium-ion batteries have the advantages of high energy density, long cycle life, and environmental friendliness. Therefore, they have not only been widely used in the 3C digital field, but also developed rapidly in the field of electric vehicles in recent years. [0003] In the lithium-ion preparation process, the existing technology is to coat the slurry on the electrode sheet, and then make the electrode sheet into a lithium-ion battery after rolling, slitting, winding, liquid injection, chemical formation, etc. However, the lithium-ion battery itself will generate a lot of heat during the working process and the charging and discharging process. When the battery temperature is too high, the electrochemical performance of the battery will be reduced, and the high temperatu...

Claims

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Application Information

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IPC IPC(8): H01M4/13H01M4/62H01M4/36H01M10/42
CPCY02E60/10
Inventor 王永光
Owner YINLONG ENERGY CO LTD
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