Global Patent Index - EP 1074056 A1

EP 1074056 A1 2001-02-07 - LITHIUM BATTERY AND ELECTRODE

Title (en)

LITHIUM BATTERY AND ELECTRODE

Title (de)

LITHIUMBATTERIE UND ELEKTRODE

Title (fr)

BATTERIE AU LITHIUM ET ELECTRODE

Publication

EP 1074056 A1 (EN)

Application

EP 99916870 A

Priority

  • EP 9901943 W
  • JP 13435198 A
  • US 5236698 A

Abstract (en)

[origin: WO9950921A1] An electrode includes an electrically conductive matrix containing a disulfide group, wherein an S-S bond of the disulfide group is cleaved by electrochemical reduction and reformed by electrochemical oxidation. A plurality of carbon nanotubes are substantially disentangled and dispersed in the electrically conductive matrix. The electrode can be used as a cathode of a lithium battery. A method for producing disentangled carbon nanotubes includes the steps of: adding a plurality of aggregates of carbon nanotubes to a liquid; and providing sheer force (e.g. passing the liquid through a narrow gap at a high speed) onto the liquid for disentangling the aggregates of carbon nanotubes therein.

IPC 1-7 (main, further and additional classification)

H01M 4/36; H01M 4/58; H01M 4/60; H01M 4/02; D01F 9/127

IPC 8 full level (invention and additional information)

C01B 31/02 (2006.01); D01F 9/127 (2006.01); H01M 4/02 (2006.01); H01M 4/136 (2010.01); H01M 4/36 (2006.01); H01M 4/60 (2006.01); H01M 4/58 (2010.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01); H01M 10/36 (2010.01)

CPC (invention and additional information)

H01M 4/36 (2013.01); B82Y 30/00 (2013.01); D01F 9/127 (2013.01); H01M 4/02 (2013.01); H01M 4/136 (2013.01); H01M 4/364 (2013.01); H01M 4/5815 (2013.01); H01M 4/60 (2013.01); H01M 4/602 (2013.01); H01M 4/587 (2013.01); H01M 4/624 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9950921 A1 19991007; CA 2326178 A1 19991007; EP 1074056 A1 20010207; JP 2002510842 A 20020409

INPADOC legal status


2007-01-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20060510

2001-04-11 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: CELANESE VENTURES GMBH

2001-02-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001031

2001-02-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE