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Title: Electrospinning for integrated separator for lithium-ion batteries

Patent ·
OSTI ID:1531807
; ; ; ; ; ; ;

Embodiments of the present invention relate generally to lithium-ion batteries, and more specifically, to batteries having integrated separators and methods of fabricating such batteries. In one embodiment, a lithium-ion battery having an electrode structure is provided. The lithium-ion battery comprises an anode stack, a cathode stack, and a porous electrospun polymer separator comprising a nano-fiber backbone structure. The anode stack comprises an anodic current collector and an anode structure formed over a first surface of the anodic current collector. The cathode stack comprises a cathodic current collector and a cathode structure formed over a first surface of the cathodic current collector. The porous electrospun polymer separator is positioned between the anode structure and the cathode structure.

Research Organization:
Applied Materials, Inc., Santa Clara, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AR0000063
Assignee:
Applied Materials, Inc. (Santa Clara, CA)
Patent Number(s):
9,065,122
Application Number:
13/224,709
OSTI ID:
1531807
Resource Relation:
Patent File Date: 2011-09-02
Country of Publication:
United States
Language:
English

References (19)

Manufacturing Method for Positive Electrode Active Material patent-application February 2011
Complex membrane for electrochemical device, manufacturing method and electrochemical device having the same patent-application December 2006
Batteries having inorganic/organic porous films patent-application April 2009
Device for Production of Nanofibres Through Electrostatic Spinning of Polymer Solutions patent-application June 2009
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Separator for Electrochemical Device, Electrode for Electrochemical Device, and Electrochemical Device patent-application January 2010
Separator for electrochemical device, electrode for electrochemical device, and electrochemical device patent September 2014
Batteries including improved fine fiber separators patent September 2006
Integrated Composite Separator for Lithium-ion Batteries patent-application September 2011
Heat Resisting Ultrafine Fibrous Separator and Secondary Battery Using the Same patent-application September 2010
Separator Including Electroactive Material for Overcharge Protection patent-application January 2009
Particle Filter System Incorporating Nanofibers patent-application February 2010
Lithium secondary battery comprising a super fine fibrous polymer separator film and its fabrication method patent October 2007
Rotary Spinning Electrode patent-application February 2010
Anode for secondary battery having negative active material with nano-fiber network structure and secondary battery using the same, and fabrication method of negative active material for secondary battery patent-application November 2008
Hybrid Polymer Electrolyte, A Lithium Secondary Battery Comprising the Hybrid Polymer Electrolyte and Their Fabrication Methods patent-application January 2009
Multifunctional Electroprocessed Membranes patent-application July 2011
ceramic Nanofibers Containing Nanosize Metal Catalyst Particles and Medium Thereof patent-application March 2011
Separator for Electrochemical Cell and Method for Its Manufacture patent-application June 2009

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