EP 1290749 A4 20040922 - MICROPOROUS SOLID ELECTROLYTES AND METHODS FOR PREPARING THEM
Title (en)
MICROPOROUS SOLID ELECTROLYTES AND METHODS FOR PREPARING THEM
Title (de)
MIKROPORÖSE FESTELEKTROLYTEN UND VERFAHREN ZUR DEREN HERSTELLUNG
Title (fr)
ELECTROLYTES SOLIDES MINERAUX MICROPOREUX ET PROCEDES DE PREPARATION
Publication
Application
Priority
KR 0000482 W 20000524
Abstract (en)
[origin: WO0199220A1] The present invention is directed to an electrolyte film and/or a solid electrolyte, having a microporous structure, for a rechargeable cell. According to the present invention, when preparing the electrolyte film and/or the solid electrolyte, an inorganic absorbent is added in the amount of more than 70 % by weight in a polymer matrix to prevent the porous structure from being destructed at the cell-assembling process such as lamination or pressing, whereby the absorbing power of a liquid electrolyte to the solid electrolyte film and the ionic conductivity can be maintained. The inorganic absorbent contained over the specific amount, together with the microporous structure, improves the capacity of absorbing the liquid electrolyte and, in particular, works as a structure element of increasing the mechanical strength of electrolyte film and/or solid electrolyte. Therefore, the good ionic conductivity can be maintained even after the assembly of cell.
IPC 1-7
IPC 8 full level
H01M 10/40 (2006.01); H01M 10/052 (2010.01); H01M 10/0565 (2010.01); H01M 10/38 (2006.01)
CPC (source: EP)
H01M 10/052 (2013.01); H01M 10/0565 (2013.01); H01M 2300/0071 (2013.01); H01M 2300/0082 (2013.01); Y02E 60/10 (2013.01); Y02P 70/50 (2015.11)
Citation (search report)
- [X] WO 9818173 A1 19980430 - VALENCE TECHNOLOGY INC [US], et al
- [Y] WO 9813889 A1 19980402 - MOTOROLA INC [US]
- [Y] WO 9826468 A1 19980618 - VALENCE TECHNOLOGY INC [US], et al
- [Y] WO 9420996 A1 19940915 - BELL COMMUNICATIONS RES [US]
- [E] WO 0038262 A1 20000629 - FINECELL CO LTD [KR], et al
- [Y] SCROSATI B ET AL: "IMPEDANCE SPECTROSCOPY STUDY OF PEO-BASED NANOCOMPOSITE POLYMER ELECTROLYTES", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, ELECTROCHEMICAL SOCIETY. MANCHESTER, NEW HAMPSHIRE, US, vol. 147, no. 5, 5 May 2000 (2000-05-05), pages 1718 - 1721, XP001051666, ISSN: 0013-4651
- [Y] CROCE F ET AL: "NANOCOMPOSITE POLYMER ELECTROLYTES FOR LITHIUM BATTERIES", NATURE, MACMILLAN JOURNALS LTD. LONDON, GB, vol. 394, 30 July 1998 (1998-07-30), pages 456 - 458, XP001154504, ISSN: 0028-0836
- See references of WO 0199220A1
Designated contracting state (EPC)
AT BE CH CY DE FR GB IT LI
DOCDB simple family (publication)
WO 0199220 A1 20011227; CN 1452794 A 20031029; EP 1290749 A1 20030312; EP 1290749 A4 20040922; JP 2003536233 A 20031202
DOCDB simple family (application)
KR 0000482 W 20000524; CN 00819535 A 20000524; EP 00927894 A 20000524; JP 2002503968 A 20000524