Pole piece and battery using said pole piece

A pole piece and battery technology, which is applied in battery electrodes, secondary batteries, secondary battery manufacturing, etc., can solve the problems of shortening battery life and affecting battery stability, so as to improve service life, balance temperature difference, and reduce heat production Effect

Active Publication Date: 2021-09-21
NINGDE AMPEREX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the accumulated heat cannot be effectively dissipated, it will affect the stability of the battery and shorten the service life of the battery

Method used

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  • Pole piece and battery using said pole piece
  • Pole piece and battery using said pole piece
  • Pole piece and battery using said pole piece

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0047] Some implementations of the present application will be described in detail below in conjunction wit...

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Abstract

A pole piece, comprising a current collector and an active layer formed on the surface of the current collector, the current collector includes a first end and a second end opposite to each other in the length direction, the active layer includes an active material, the The content of the active material in the active layer gradually increases from the first end along the length direction to the second end, so as to balance the temperature difference inside and outside the battery and improve the service life of the battery. The present application also provides a battery using the above pole piece.

Description

technical field [0001] The application relates to a pole piece and a battery using the pole piece. Background technique [0002] Due to its high operating voltage, high energy density, low self-discharge, and long life, batteries are ideal energy sources for long-life and high-reliability instruments and meters, and are also the preferred supporting power source for automotive electronics. Due to the principle and structural characteristics of the battery, a large amount of heat is often generated due to internal resistance heating during repeated use, and the heat will gradually accumulate and increase during use; especially when charging and discharging at a high rate, the heat generated by the battery is serious, and the battery The temperature difference between inside and outside is large. If the accumulated heat cannot be effectively dissipated, it will affect the stability of the battery and shorten the service life of the battery. Contents of the invention [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/02H01M10/04H01M10/613H01M10/654H01M10/6551
CPCH01M4/02H01M10/0431H01M10/613H01M10/654H01M10/6551H01M4/622H01M4/667H01M2004/021H01M10/617H01M10/653Y02E60/10Y02P70/50H01M10/045
Inventor 金娟吴飞陈新冰
Owner NINGDE AMPEREX TECH
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