Lithium battery and the preparation method thereof

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United States of America Patent

PATENT NO 9742031
SERIAL NO

14384178

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Abstract

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The present invention discloses a lithium battery, which comprises of a positive electrode plate, a negative electrode current collector substrate, a separator and electrolyte between the positive electrode plate and the negative electrode current collector substrate. The positive electrode plate comprises a positive electrode collector, a positive electrode active material-containing positive electrode layer attached to the positive electrode collector and positive electrode tab welded to the positive electrode collector. The negative electrode current collector substrate comprises a negative electrode current collector and negative electrode tab welded to the negative electrode current collector. The negative electrode current collector substrate is a current collector substrate with 6˜60 μm thickness having a planar or concavo-convex structure which is made from metal foil material or metal mesh with 6˜25 μm thickness. The electrolyte contains lithium salt and solvent, wherein the lithium salt is lithium hexafluorophosphate and its concentration in the electrolyte is between 1.5˜7 mol/L. The lithium battery of the present invention has characteristics of high power, high energy and low self-discharge rate. Meanwhile, the present invention also discloses a preparation method of the lithium battery and use thereof.

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Patent Owner(s)

Patent OwnerAddress
EVE ENERGY CO LTDHUIZHOU GUANGDONG 516006

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Fanfen Guangdong, CN 7 4
Liu, Jincheng Guangdong, CN 35 17
Lv, Zhengzhong Guangdong, CN 4 4
Yuan, Zhongzhi Guangdong, CN 8 5

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