US Patent No: 6,432,586

Number of patents in Portfolio can not be more than 2000

Separator for a high energy rechargeable lithium battery

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Abstract

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The instant invention is directed to a separator for a high energy rechargeable lithium battery and the corresponding battery. The separator includes a ceramic composite layer and a polymeric microporous layer. The ceramic layers includes a mixture of inorganic particles and a matrix material. The ceramic layer is adapted, at least, to block dendrite growth and to prevent electronic shorting. The polymeric layer is adapted, at least, to block ionic flow between the anode and the cathode in the event of thermal runaway.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CELGARD LLCCHARLOTTE, NC105

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Zhang, Zhengming Charlotte, NC 27 66

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MOTOROLA MOBILITY LLC (2)
5,631,103 Highly filled solid polymer electrolyte 34 1996
5,849,433 Polymer blend electrolyte system and electrochemical cell using same 34 1997
 
UBE INDUSTRIES, LTD. (1)
5,654,114 Nonaqueous secondary battery 51 1995
 
W. L. GORE & ASSOCIATES, INC. (1)
6,242,135 Solid electrolyte composite for electrochemical reaction apparatus 39 1997

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
LG CHEM, LTD. (11)
7,682,740 Organic/inorganic composite porous layer-coated electrode and electrochemical device comprising the same 7 2005
7,704,641 Organic/inorganic composite porous film and electrochemical device prepared thereby 6 2005
8,409,746 Organic/inorganic composite porous film and electrochemical device prepared thereby 0 2005
8,841,031 Surface-treated microporous membrane and electrochemical device prepared thereby 0 2005
7,662,517 Organic/inorganic composite microporous membrane and electrochemical device prepared thereby 7 2005
7,910,249 Additive for nonaqueous electrolyte and secondary battery using the same 0 2006
7,883,799 Organic/inorganic composite porous membrane and electrochemical device using the same 4 2006
8,343,388 Electrode having porous active coating layer, manufacturing method thereof and electrochemical device containing the same 0 2007
8,741,470 Electrochemical device having different kinds of separators 0 2008
8,318,360 Organic/inorganic composite porous membrane and electrochemical device using the same 0 2010
8,574,743 Electrochemical device with alternative separator system 0 2011
 
SAMSUNG SDI CO., LTD. (6)
7,951,492 Secondary battery and electrode plate therefor 0 2005
7,695,857 Electrode assembly for lithium ion secondary battery and lithium ion secondary battery using the same 0 2006
8,580,417 Electrode assembly and secondary battery having the same 0 2008
7,981,537 Electrode assembly and secondary battery having the same 2 2008
8,691,419 Cylindrical secondary battery 0 2009
8,530,097 Electrode assembly including film-like separator combined with ceramic separator and secondary battery having the same 0 2009
 
EVEREADY BATTERY COMPANY, INC. (5)
8,124,274 High discharge capacity lithium battery 0 2005
8,007,940 High discharge capacity lithium battery 0 2010
7,968,230 High discharge capacity lithium battery 0 2010
8,642,212 High discharge capacity lithium battery 0 2011
8,283,071 High discharge capacity lithium battery 0 2011
 
PANASONIC CORPORATION (3)
8,211,574 Lithium ion secondary battery 0 2004
8,067,120 Non-aqueous electrolyte secondary battery 0 2007
8,288,038 Separator and non-aqueous electrolyte secondary battery 0 2007
 
CELGARD LLC (2)
7,790,320 Battery separator with Z-direction stability 0 2007
7,662,510 X-ray sensitive battery separator and a method for detecting the position of a separator in a battery 1 2007
 
EVONIK DEGUSSA GMBH (2)
7,691,528 Lithium battery separator having a shutdown function 3 2003
8,016,896 Separator with long-term stability for an electrochemical cell 2 2009
 
DEGUSSA AG (1)
7,691,529 Lithium battery separator having a shutdown function 4 2009
 
ENEVATE CORPORATION (1)
8,603,683 Gas phase deposition of battery separators 0 2013
 
ENOVIX CORPORATION (1)
8,216,712 Anodized metallic battery separator having through-pores 0 2008
 
HITACHI MAXELL, LTD. (1)
8,405,957 Separator for electrochemical device and method for producing the same, and electrochemical device and method for producing the same 1 2006
 
LG CHEMICAL CO., LTD. (1)
6,881,514 Stacked electrochemical cell 7 2001
 
Nanotek Instruments, Inc. (1)
8,236,452 Nano-structured anode compositions for lithium metal and lithium metal-air secondary batteries 3 2009
 
NITTO DENKO CORPORATION (1)
8,592,072 Battery separator and method for producing the same, and lithium ion secondary battery and method of producing the same 0 2009
 
POROUS POWER TECHNOLOGIES, LLC (1)
8,323,815 Optimized microporous structure of electrochemical cells 0 2007