skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Separators for electrochemical cells

Patent ·
OSTI ID:1163750

Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic substituents. Preferably, the inorganic oxide comprises an hydrated aluminum oxide of the formula Al.sub.2O.sub.3.xH.sub.2O, wherein x is less than 1.0, and wherein the hydrated aluminum oxide comprises organic substituents, preferably comprising a reaction product of a multifunctional monomer and/or organic carbonate with an aluminum oxide, such as pseudo-boehmite and an aluminum oxide. Also provided are electrochemical cells comprising such separators.

Research Organization:
Optodot Corporation, Woburr, MA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-02ER83542
Assignee:
Optodot Corporation (Woburr, MA)
Patent Number(s):
8,883,354
Application Number:
11/652,948
OSTI ID:
1163750
Resource Relation:
Patent File Date: 2007 Jan 12
Country of Publication:
United States
Language:
English

References (109)

Lithium electrochemical cells with enhanced cycle life patent February 2002
Spirally-wound non-aqueous secondary battery and electrode plate used therefor patent-application December 2005
Methods of fabricating electrochemical cells patent April 1999
Lithium ion secondary battery and method for producing the same patent July 2010
Batteries having inorganic/organic porous films patent-application April 2009
Lithium ion secondary battery patent July 2010
Implantable battery patent-application September 2003
Cell for making secondary batteries patent November 1992
Organic/inorganic composite separator and electrochemical device containing the same patent April 2010
Polymer-lithium batteries and improved methods for manufacturing batteries patent September 1994
Manufacturing method of a separator for a lithium secondary battery and an organic electrolyte lithium secondary battery using the same separator patent November 1997
Electrochemical device using multicomponent composite membrane film patent March 2006
Methods of preparing electrochemical cells patent July 2006
Batteries, conductive compositions, and conductive films containing organic liquid electrolytes and plasticizers patent March 1998
Method of making multi-layer electrochemical cell devices patent December 2001
Non-aqueous electrolyte secondary battery patent March 2010
Methods of preparing a microporous article patent December 2002
Secondary battery patent October 1998
Protective coating for separators for electrochemical cells patent February 2001
Lithium ion secondary battery and method for producing the same patent October 2010
Method for making laminated rechargeable battery cells patent November 1998
Separator-electrode unit for lithium-ion batteries, method for the production and use thereof in lithium batteries patent October 2010
Method of making prismatic cell patent August 1996
Secondary battery and method for producing the same patent July 2009
Production of molded articles for lithium ion batteries patent-application April 2004
Optical switch device patent-application October 2002
Cylindrical lithium battery resistant to breakage of the porous heat resistant layer patent September 2008
Laminated battery cell and methods for creating the same patent-application October 2010
Method for producing lithium ion secondary battery patent August 2009
Method of making separators for electrochemical cells comprising a microporous pseudo-boehmite layer patent June 2002
Protective coating for separators for electrochemical cells patent August 2001
Lithium ion secondary battery patent July 2010
Inorganic separator-electrode-unit for lithium-ion batteries, method for the production thereof and use thereof in lithium batteries patent November 2010
Separators for electrochemical cells patent-application July 2002
Batteries utilizing cathode coatings directly on nanoporous separators patent-application March 2012
Methods of preparing electrochemical cells patent June 2006
Layered electrochemical cell and manufacturing method therefor patent-application February 2004
Microporous material exhibiting increased whiteness retention patent July 1994
Rechargeable composite polymer battery patent-application March 2004
Protective coating for separators for electrochemical cells patent-application December 2001
Process of manufacturing porous separator for electrochemical power supply patent March 1999
Organic/inorganic composite separator having porous active coating layer and electrochemical device containing the same patent May 2010
Lithium anodes for electrochemical cells patent-application October 2006
Silica electrolyte element for secondary lithium battery patent March 1993
Multi-component composite film method for preparing the same patent May 2010
High reliability electrochemical cell and electrode assembly therefor patent August 1995
Filtration media and methods of preparation patent-application May 2007
Lithium secondary battery and manufacturing method thereof patent September 2002
Manufacturing method of a separator for a lithium secondary battery and an organic electrolyte lithium secondary battery using the same separator patent January 1997
Separators for electrochemical cells patent-application August 2007
Microporous articles and methods of preparation patent January 2007
HIGH ENERGY HIGH POWER ELECTRODES AND BATTERIES patent-application October 2009
Nonaqueous battery having porous separator and production method thereof patent September 2001
Methods of preparing electrochemical cells patent December 2002
Process of manufacturing porous separator for electrochemical power supply patent November 2000
Separator for battery and battery patent April 2004
Allyl polyalkylene ether polymers and solid electrolytes for an electrochemical cell patent August 1994
Conical nut patent-application July 2008
Synthesis of ceramic membranes: Part I Synthesis of non-supported and supported γ-alumina membranes without defects journal January 1992
Multi-component composite film method for preparing the same patent December 2008
Organic/inorganic composite separator having morphology gradient, manufacturing method thereof and electrochemical device containing the same patent December 2009
Lithium ion secondary battery and charging method therefor, and charge or charge/discharge control system for lithium ion secondary battery patent March 2010
Methods of fabricating electrochemical cells patent July 1998
Microporous separators for electrochemical cells patent-application July 2008
Battery Separator and Method of Producing Same patent March 1972
Electrical contact outlet for anodes patent May 1995
Rechargeable lithium battery for use in applications requiring a low to high power output patent October 1996
Microporous separators patent-application September 2004
Separators for electrochemical cells patent October 2001
Lithium ion secondary battery patent July 2008
Lithium ion secondary battery patent December 2009
Battery with adhesion resin layer including filler patent November 2004
Organic/inorganic composite porous layer-coated electrode and electrochemical device comprising the same patent March 2010
Organic/inorganic composite microporous membrane and electrochemical device prepared thereby patent February 2010
Methods of preparing separators for electrochemical cells patent-application August 2007
Battery Separator patent December 1971
Methods of making separators for electrochemical cells comprising pseudo-boehmite layers and a protective coating layer patent July 2002
Nonaqueous electrolyte secondary battery patent September 2008
Lithium ion secondary battery patent October 2006
Electrode for lithium ion secondary batteries, lithium ion secondary battery using the same, and method for manufacturing the battery patent July 2010
Fuel cells and methods of preparation patent-application May 2007
Batteries utilizing anode coatings directly on nanoporous separators patent-application March 2012
Polymer Solid Electrolyte patent December 2000
Lithium secondary battery including a separator patent March 2010
Non-aqueous electrolyte secondary battery and method of production of the same patent-application February 2003
Battery structure patent-application November 2007
Lithium ion secondary battery patent June 2010
Separators for electrochemical cells patent November 2000
Protective lithium ion conducting ceramic coating for lithium metal anodes and associate method patent May 1994
Process of manufacturing porous separator for electrochemical power supply patent September 1999
Prismatic lithium secondary battery having a porous heat resistant layer patent May 2008
Microporous articles and methods of preparation patent-application June 2003
Protective coating for separators for electrochemical cells patent-application April 2001
Organic/inorganic composite porous film and electrochemical device prepared thereby patent-application November 2011
Protective coating for separators for electrochemical cells patent February 2001
Method of preparing lithium ion polymer battery patent July 2001
Batteries utilizing electrode coatings directly on nanoporous separators patent-application May 2012
Electrochemical device separator structures with barrier layer on non-swelling membrane patent July 2006
Nonaqueous electrolyte solution secondary battery separator and nonaqueous electrolyte solution secondary battery using the same patent-application June 2006
Secondary battery and method for producing the same patent July 2008
Organic/inorganic composite porous film and electrochemical device prepared thereby patent April 2010
Multilayer secondary battery and method of making same patent-application August 2006
Negative electrode for lithium secondary battery, lithium secondary battery using same, and methods for manufacturing those patent-application January 2009
Safety shutdown separators patent-application October 2007
Capacitors and methods of preparation patent-application May 2007
Lithium batteries utilizing nanoporous separator layers patent-application March 2012
Material for fuel cell separator and fuel cell separator made from said material patent September 2002
Polymeric electrolytic cell separator membrane patent May 1995
Battery separator and lithium secondary battery patent September 2009