High-power density lithium ion battery

High-power density lithium ion battery

The invention provides a high-power density lithium ion battery, and belongs to the technical field of lithium ion batteries. The lithium ion battery comprises a positive pole piece and a negative pole piece; the positive pole piece comprises an aluminium foil, a positive pole electricity conducting...

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Hauptverfasser: GENG BIN, WU QIANG, HUANG YOUGUO, PENG JIMING, ZHANG XIAOHUI, LAI FEIYAN, LI QINGYU, LIANG QINQIN, WANG HONGQIANG, CUI LISAN
Format: Patent
Sprache:chi ; eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator GENG BIN
WU QIANG
HUANG YOUGUO
PENG JIMING
ZHANG XIAOHUI
LAI FEIYAN
LI QINGYU
LIANG QINQIN
WANG HONGQIANG
CUI LISAN
description The invention provides a high-power density lithium ion battery, and belongs to the technical field of lithium ion batteries. The lithium ion battery comprises a positive pole piece and a negative pole piece; the positive pole piece comprises an aluminium foil, a positive pole electricity conducting agent and a positive pole adhesive; the negative pole piece comprises a copper foil and a negative pole electricity conducting agent; the positive pole adhesive is PVDF (Polyvinylidene Fluoride), and the molecular weight is three hundred thousand and seven hundred thousand; the copper foil and the aluminium foil are subjected to surface treatment firstly before the pole pieces are manufactured; then, the surfaces of the copper foil and the aluminium foil are attached with an electricity conducting film, wherein the thickness of the electricity conducting film is 1 to 5 mu m. According to the high-power density lithium ion battery, the electricity conductivity of the pole pieces is improved by treating the copper f
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title High-power density lithium ion battery
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