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1. WO2002025751 - SULFUR-CONTAINING CATHODE

Publication Number WO/2002/025751
Publication Date 28.03.2002
International Application No. PCT/US2001/029247
International Filing Date 19.09.2001
IPC
H01M 4/62 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/58 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
58of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/66 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
64Carriers or collectors
66Selection of materials
CPC
H01M 4/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
H01M 4/5815
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
36Selection of substances as active materials, active masses, active liquids
58of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
581Chalcogenides or intercalation compounds thereof
5815Sulfides
H01M 4/621
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
621Binders
H01M 4/624
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
624Electric conductive fillers
H01M 4/667
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
64Carriers or collectors
66Selection of materials
665Composites
667in the form of layers, e.g. coatings
Y02E 60/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
10Energy storage using batteries
Applicants
  • MOLTECH CORPORATION [US]/[US] (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, BZ, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NE, NL, NO, NZ, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW)
  • CHENG, Song [CN]/[US] (UsOnly)
  • WEST, Jason, D. [US]/[US] (UsOnly)
Inventors
  • CHENG, Song
  • WEST, Jason, D.
Agents
  • NICOL, Jacqueline, M.
Priority Data
09/668,70720.09.2000US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SULFUR-CONTAINING CATHODE
(FR) CATHODE CONTENANT DU SOUFRE
Abstract
(EN)
Provided is a composite cathode comprising (a) an electroactive sulfur-containing material; (b) a crosslinked polymer formed from a reaction of a polymeric material having carboxyl groups and a crosslinking agent; and (c) a conductive filler. The crosslinked polymer improves the flexibility, adhesion, and cycle life of the composite cathode in electrochemical cells comprising the cathode. Also provided are electrochemical cells comprising such cathodes and methods for preparing such cathodes and electrochemical cells.
(FR)
L'invention concerne une cathode composite comprenant (a) un matériau électroactif contenant du soufre, (b) un polymère réticulé formé à partir d'une réaction entre un matériau polymère comprenant des groupes carboxyle et un agent de réticulation, et (c) une charge conductrice. Le polymère réticulé améliore la souplesse d'utilisation, l'adhérence et la durée de vie des cycles de la cathode composite, dans des cellules électrochimiques comprenant cette cathode. L'invention concerne encore des cellules électrochimiques comprenant de telles cathodes ainsi que des procédés de préparation de ces cathodes et cellules électrochimiques.
Also published as
Latest bibliographic data on file with the International Bureau