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High power gel polymer lithium ion power cell and method of producing the same

A gel polymer and power battery technology, applied in the field of electrochemistry, can solve the problems of low battery capacity and low charge and discharge performance, and achieve the effect of low manufacturing and use costs and improved charge and discharge performance

Inactive Publication Date: 2008-04-02
万向电动汽车有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Another purpose of the present invention is to solve the technical problems of low battery capacity and low charge-discharge performance in the prior art; to provide a high-rate gel polymer lithium-ion power battery with high rate and good charge-discharge performance and its manufacture method

Method used

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  • High power gel polymer lithium ion power cell and method of producing the same

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Embodiment 1

[0022] Manufacturing of battery pole pieces:

[0023] a. Preparation of cathode material

[0024] Mix 65-95% positive electrode active material, 1-10% conductive agent, 5-15% binder and 5-15% plasticizer in acetone to make a slurry, apply the slurry on the PET film, and dry Afterwards, the cathode membrane is obtained.

[0025] Wherein, the cathode active material is a combination of one or several lithium intercalation oxides, such as lithium cobalt oxide, lithium manganese oxide, lithium nickel oxide, lithium cobalt nickel oxide or their solid solution; The agent is a variety of high conductivity carbon black, such as acetylene black, acetone black, SupperS, Supper P and ultrafine graphite powder, etc.; the binder is a polymer, such as polyvinylidene fluoride homopolymer, vinylidene fluoride-hexafluoro Propylene copolymer, etc.; plasticizers are dimethyl phthalate (DMP), dibutyl phthalate (DBP), ethylene carbonate, propylene carbonate, dimethyl carbonate, diethyl carbonate...

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Abstract

The invention relates to a lithium ion battery and the manufacturing method thereof, particularly relating to a high multiplying power gel polymer lithium ion power battery and the manufacturing method thereof. Mainly aiming at resolving the technical problems of safety performance, etc., which exists in the prior art, the invention provides the high multiplying power gel polymer lithium ion power battery, which has the advantages of reasonable design, simple structure, high safety performance and low cost, and the manufacturing method thereof. The main technical proposal of the invention is that the lithium ion power battery consists of a cathode mass flow liquid, an anode mass flow liquid, a cathode membrane, an anode membrane, a membrane and electrolyte, wherein, the membrane is the gel polymer electrolyte, the cathode membrane and the anode membrane are evenly coated or hot-pressed on the cathode mass flow liquid and the anode mass flow liquid; the cathode mass flow liquid, the cathode membrane, the membrane, the anode membrane and the anode mass flow liquid are orderly overlaid, forming a square single bag.

Description

technical field [0001] The invention belongs to the lithium-ion battery and its manufacturing method in the field of electrochemistry, and in particular relates to a high-rate gel polymer lithium-ion power battery and its manufacturing method. Background technique [0002] As the world is facing increasingly serious environmental problems and future oil and other energy sources will be exhausted, seeking renewable energy has become an urgent task for mankind. As one of the new green power sources that developed countries focus on developing, power batteries have good market application prospects in electric vehicles, electric tools, and mobile electronic equipment. The current power batteries mainly include lead-acid batteries, nickel-cadmium batteries and lithium-ion batteries. Lead-acid batteries have been used for more than 200 years. The country prohibits its use, and its low specific energy also limits its use. Lead-acid batteries have become increasingly unable to mee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/40H01M10/04H01M6/16H01M2/16H01M10/0525H01M10/0565H01M50/411H01M50/491
CPCY02E60/122Y02E60/10Y02P70/50
Inventor 郑利峰邓龙征唐伟张兴国何峰俞琴张克俭
Owner 万向电动汽车有限公司
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