Battery pole piece, preparation method and lithium ion battery

Battery pole piece, preparation method and lithium ion battery

The invention discloses a battery pole piece, a preparation method and a lithium ion battery. The battery pole piece comprises a battery pole piece current collector, one side or two sides of the battery pole piece current collector in the thickness direction are coated with a pole piece active mate...

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Hauptverfasser: SUN XINYI, WANG PITAO, WANG JINGBO, DONG SHIJIA, LIU BOZHENG, LI HAITING, ZENG TAO, CAO LIUYANG
Format: Patent
Sprache:chi ; eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator SUN XINYI
WANG PITAO
WANG JINGBO
DONG SHIJIA
LIU BOZHENG
LI HAITING
ZENG TAO
CAO LIUYANG
description The invention discloses a battery pole piece, a preparation method and a lithium ion battery. The battery pole piece comprises a battery pole piece current collector, one side or two sides of the battery pole piece current collector in the thickness direction are coated with a pole piece active material coating; at least one tab is arranged on one side of the battery pole piece current collector in the width direction or the height direction; the pole piece active substance coating comprises a plurality of coating units; the plurality of coating units are sequentially arranged and distributed from one side, closest to the tab, of the pole piece active substance coating to one side, farthest from the tab, of the pole piece active substance coating; the plurality of coating units are independently coated on the surface of the battery pole piece current collector in a partitioned manner; the multiple coating units meet one or more of preset gradient distribution modes. According to the invention, the purposes of
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Battery pole piece, preparation method and lithium ion battery
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