EP1463143-A2  J. POWER SOURCES vol. 51, 1994, pages 79 - 104;  J. POWER SOURCES vol. 72, 1998, pages 66 - 70;  JOURNAL OF ELECTROCHEMICAL SOCIETY vol. 149, no. 1, 2002, pages 9 - 12;  M. WINTER AND AL: "Chloroethylene carbonate , a solvent for lithium-ion cells, evolving Co2 during reduction" JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 145, no. 2, February 1998 (1998-02), XP002471533;  MCMILLAN R ET AL: "Fluoroethylene carbonate electrolyte and its use in lithium ion batteries with graphite anodes" JOURNAL OF POWER SOURCES, ELSEVIER, AMSTERDAM, NL, vol. 81-82, September 1999 (1999-09), pages 20-26, XP004363118 ISSN: 0378-7753US7223500-B2  C.R. Yang, Y.Y. Wang, C.C. Wan; Composition analysis of the passive film on the carbon electrode of a lithium-ion battery with an EC-based electrolyte;Journal of Power Sources 72 (1998) pp. 66-70.;  Norio Takami et al.; Laminated Thin Li-Ion Batteries Using a Liquid Electrolyte; Journal of the Electrochemical Society, 149 (1) A9-12 (2002); pp. A9-A12.;  Sid Megahed and Bruno Scrosati; Lithium-ion rechargeable batteries; Journal of Power Sources, 51 (1994; pp. 79-104.EP1463143-A3  M. WINTER AND AL: "Chloroethylene carbonate , a solvent for lithium-ion cells, evolving Co2 during reduction", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 145, no. 2, February 1998 (1998-02-01), XP002471533;  MCMILLAN R ET AL: "Fluoroethylene carbonate electrolyte and its use in lithium ion batteries with graphite anodes", JOURNAL OF POWER SOURCES, ELSEVIER, AMSTERDAM, NL, vol. 81-82, September 1999 (1999-09-01), pages 20 - 26, XP004363118, ISSN: 0378-7753EP1463143-B1  M. WINTER AND AL: "Chloroethylene carbonate , a solvent for lithium-ion cells, evolving Co2 during reduction" JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 145, no. 2, February 1998 (1998-02), XP002471533;  MCMILLAN R ET AL: "Fluoroethylene carbonate electrolyte and its use in lithium ion batteries with graphite anodes" JOURNAL OF POWER SOURCES, ELSEVIER, AMSTERDAM, NL, vol. 81-82, September 1999 (1999-09), pages 20-26, XP004363118 ISSN: 0378-7753