Invention Grant
- Patent Title: Electric separator comprising a shutdown mechanism, method for the production thereof, and use in lithium batteries
- Patent Title (中): 电分离器包括关闭机构，其制造方法和用于锂电池
-
Application No.: US10575759Application Date: 2004-08-19
-
Publication No.: US07655360B2Publication Date: 2010-02-02
- Inventor: Volker Hennige , Christian Hying , Gerhard Hoerpel
- Applicant: Volker Hennige , Christian Hying , Gerhard Hoerpel
- Applicant Address: DE Duesseldorf
- Assignee: Degussa AG
- Current Assignee: Degussa AG
- Current Assignee Address: DE Duesseldorf
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: DE10347567 20031014
- International Application: PCT/EP2004/051846 WO 20040819
- International Announcement: WO2005/038960 WO 20050428
- Main IPC: H01M2/16
- IPC: H01M2/16 ; H01M4/58
Abstract:
An electrical separator for a lithium battery is composed of a porous carrier coated with a porous inorganic nonelectroconductive material and a porous shutdown layer on the porous inorganic nonelectroconductive coating. The shutdown layer melts at a selected temperature defined by layer composition. Upon melting, the pores of the inorganic layer are closed. Such an electrical separator provides a lithium battery of improved safety. A method to produce the electrical separator is provided.
Public/Granted literature
Information query
