Negative pole piece for secondary battery, secondary battery and electronic device

Negative pole piece for secondary battery, secondary battery and electronic device

The invention relates to the technical field of batteries, in particular to a negative pole piece for a secondary battery, the secondary battery and an electronic device. The negative pole piece comprises a negative current collector, the current collector is coated with a negative composite materia...

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Hauptverfasser: ZHUANG ZHONGJIAN, HONG JIANGBIN, WANG CHAORONG, FANG CHONGQING, WANG YOUAN
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 ZHUANG ZHONGJIAN
HONG JIANGBIN
WANG CHAORONG
FANG CHONGQING
WANG YOUAN
description The invention relates to the technical field of batteries, in particular to a negative pole piece for a secondary battery, the secondary battery and an electronic device. The negative pole piece comprises a negative current collector, the current collector is coated with a negative composite material comprising porous graphene and a negative main material, and the sheet diameter distribution parameter of the porous graphene, volatile components and the weight ratio of the porous graphene in the negative pole piece meet the following relational expression: 0.02 < = A/(B * D) < = 0.80; the porous graphene is coated on the surface of the negative electrode main material; wherein A represents the weight ratio of the porous graphene, B represents the volatile component of the porous graphene, and D represents the sheet diameter distribution parameter of the porous graphene. According to the present invention, the porous graphene is added to the conductive agent of the negative electrode plate, and the sheet diamet
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Negative pole piece for secondary battery, secondary battery and electronic device
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