Multi-coating structure, negative pole piece and application of negative pole piece

The invention provides a multi-coating structure, a negative pole piece and application of the negative pole piece. The multi-coating structure comprises a current collector, the current collector is divided into at least one pole piece area along the width direction, and two active areas are arrang...

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Main Authors XIONG HOUGAO, ZHU ZHONGSI, TAN MINGSHENG, HAN SUIWU, LIU JINCHENG, LI QIANWEI
Format Patent
LanguageChinese
English
Published 13.07.2021
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Abstract The invention provides a multi-coating structure, a negative pole piece and application of the negative pole piece. The multi-coating structure comprises a current collector, the current collector is divided into at least one pole piece area along the width direction, and two active areas are arranged in the pole piece area at intervals along the width direction of the current collector. The surface of each active area is provided with an active slurry layer, an area between the active area and the long edge of the pole piece area is a tab empty foil area, an edge coating area is arranged between the active areas. The surface of the edge coating area is provided with an edge coating slurry layer, and the adhesive force of the edge coating slurry layer is greater than that of the active slurry layer. According to the invention, the problem of powder falling during tab cutting and welding can be effectively avoided, the voltage drop of a battery cell is normal, the yield of the battery cell is increased, the ca
AbstractList The invention provides a multi-coating structure, a negative pole piece and application of the negative pole piece. The multi-coating structure comprises a current collector, the current collector is divided into at least one pole piece area along the width direction, and two active areas are arranged in the pole piece area at intervals along the width direction of the current collector. The surface of each active area is provided with an active slurry layer, an area between the active area and the long edge of the pole piece area is a tab empty foil area, an edge coating area is arranged between the active areas. The surface of the edge coating area is provided with an edge coating slurry layer, and the adhesive force of the edge coating slurry layer is greater than that of the active slurry layer. According to the invention, the problem of powder falling during tab cutting and welding can be effectively avoided, the voltage drop of a battery cell is normal, the yield of the battery cell is increased, the ca
Author XIONG HOUGAO
TAN MINGSHENG
LI QIANWEI
HAN SUIWU
LIU JINCHENG
ZHU ZHONGSI
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– fullname: LI QIANWEI
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DocumentTitleAlternate 一种多幅涂布结构、负极极片及负极极片的用途
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Snippet The invention provides a multi-coating structure, a negative pole piece and application of the negative pole piece. The multi-coating structure comprises a...
SourceID epo
SourceType Open Access Repository
SubjectTerms BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
Title Multi-coating structure, negative pole piece and application of negative pole piece
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