Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1998-02-20
2000-10-24
Bell, Bruce F.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
296231, 29746, 296234, 4292314, 4292317, H01M 600
Patent
active
061364703
ABSTRACT:
The invention encompasses batteries, battery electrodes and methods of forming batteries and battery electrodes. In one aspect, the invention includes a method of forming a battery electrode comprising: a) forming an electrode material mix comprising electrode active material, a conductive medium, and polymeric binder materials consisting essentially of PVDF, copolymers of vinylidene fluoride and hexafluoropropylene, or mixtures thereof; b) curing the electrode mix to form a compressible material; and c) compressing the compressible material into an electrode. In another aspect, the invention encompasses a method of forming a battery comprising: a) forming a first electrode, the forming the first electrode comprising: i) forming an electrode material mixture, the electrode material mixture comprising an electrode active material, a conductive medium, and polymeric binder materials consisting essentially of PVDF, copolymers of vinylidene fluoride and hexafluoropropylene, or mixtures thereof; ii) forming the electrode material mixture into a sheet; iii) curing the sheet into a layer having a thickness; iv) compressing the material of the layer to decrease the thickness of the layer; and v) forming the first electrode from the material; b) providing a second electrode; and c) incorporating the first and second electrodes into a battery.
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Technical Brochure: "KYNAR and KYNAR FLEX PVDF", Elf Atochem North America, Inc., 16 pages. no month/yr. available.
Product Information: "KYNAR 740 Pellets/KYNAR 741 Powder", Elf Atochem North America, Inc., Nov. 1993, 15 pages.
Dix Eric R.
Li Weihong
Bell Bruce F.
Micro)n Technology, Inc.
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