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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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CELGARD LLCCHARLOTTE, NC65

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Zhang, Zhengming Charlotte, NC 22 80

Cited Art Landscape

Patent Info (Count) # Cites Year
 
UBE INDUSTRIES, LTD. (1)
* 5,654,114 Nonaqueous secondary battery 53 1995
 
GOOGLE TECHNOLOGY HOLDINGS LLC (2)
* 5,631,103 Highly filled solid polymer electrolyte 34 1996
* 5,849,433 Polymer blend electrolyte system and electrochemical cell using same 35 1997
 
W. L. GORE & ASSOCIATES, INC. (1)
* 6,242,135 Solid electrolyte composite for electrochemical reaction apparatus 42 1997
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2015/0111,086 Polymer-Bound Ceramic Particle Battery Separator Coating 0 2014
 
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
 
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
 
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
 
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
 
ENOVIX CORPORATION (2)
* 8,216,712 Anodized metallic battery separator having through-pores 2 2008
8,900,331 Process for manufacturing a battery incorporating an anodized metallic battery separator having through-pores 0 2012
 
POROUS POWER TECHNOLOGIES, LLC (1)
8,323,815 Optimized microporous structure of electrochemical cells 0 2007
 
ASAHI KASEI E-MATERIALS CORPORATION (1)
9,070,935 Multilayer porous film 0 2008
 
GM GLOBAL TECHNOLOGY OPERATIONS LLC (2)
* 2012/0315,384 METHOD OF APPLYING NONCONDUCTIVE CERAMICS ON LITHIUM-ION BATTERY SEPARATORS 1 2011
8,951,654 Materials and methods for retarding or preventing thermal runaway in batteries 0 2011
 
NANOTEK INSTRUMENTS, INC. (2)
8,236,452 Nano-structured anode compositions for lithium metal and lithium metal-air secondary batteries 3 2009
8,962,188 Anode compositions for lithium secondary batteries 0 2010
 
MEDTRONIC, INC. (1)
8,945,753 Implantable battery having thermal shutdown separator 0 2005
 
HE3DA S.R.O. (1)
* 2011/0165,457 LITHIUM ACCUMULATOR AND THE METHOD OF PRODUCING THEREOF 0 2009
 
EVONIK DEGUSSA GMBH (2)
* 7,691,528 Lithium battery separator having a shutdown function 5 2003
* 8,016,896 Separator with long-term stability for an electrochemical cell 3 2009
 
LG CHEMICAL CO., LTD. (1)
* 6,881,514 Stacked electrochemical cell 11 2001
 
ENERGIZER BRANDS, LLC (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
 
LG CHEM, LTD. (16)
7,682,740 Organic/inorganic composite porous layer-coated electrode and electrochemical device comprising the same 20 2005
7,704,641 Organic/inorganic composite porous film and electrochemical device prepared thereby 12 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
* 2009/0291,360 SURFACE-TREATED MICROPOROUS MEMBRANE AND ELECTROCHEMICAL DEVICE PREPARED THEREBY 4 2005
7,662,517 Organic/inorganic composite microporous membrane and electrochemical device prepared thereby 12 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 6 2006
9,017,878 Lithium secondary battery with enhanced heat-resistance 0 2007
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
* 2011/0281,172 ORGANIC/INORGANIC COMPOSITE POROUS FILM AND ELECTROCHEMICAL DEVICE PREPARED THEREBY 0 2011
* 2011/0281,171 ORGANIC/INORGANIC COMPOSITE POROUS FILM AND ELECTROCHEMICAL DEVICE PREPARED THEREBY 3 2011
9,070,930 Organic/inorganic composite electrolyte and electrochemical device prepared thereby 0 2011
 
ENEVATE CORPORATION (1)
8,603,683 Gas phase deposition of battery separators 0 2013
 
DEGUSSA AG (1)
7,691,529 Lithium battery separator having a shutdown function 5 2009
 
Molecular Nanosystems, Inc. (1)
* 2011/0183,203 Polymer supported electrodes 4 2011
 
SAMSUNG SDI CO., LTD. (6)
* 7,951,492 Secondary battery and electrode plate therefor 1 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 3 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
* Cited By Examiner