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Title: Conductive polymer and Si nanoparticles composite secondary particles and structured current collectors for high loading lithium ion negative electrode application

Patent ·
OSTI ID:1369051

Embodiments of the present invention disclose a composition of matter comprising a silicon (Si) nanoparticle coated with a conductive polymer. Another embodiment discloses a method for preparing a composition of matter comprising a plurality of silicon (Si) nanoparticles coated with a conductive polymer comprising providing Si nanoparticles, providing a conductive polymer, preparing a Si nanoparticle, conductive polymer, and solvent slurry, spraying the slurry into a liquid medium that is a non-solvent of the conductive polymer, and precipitating the silicon (Si) nanoparticles coated with the conductive polymer. Another embodiment discloses an anode comprising a current collector, and a composition of matter comprising a silicon (Si) nanoparticle coated with a conductive polymer.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-05CH11231
Assignee:
The Regents of The University of California
Patent Number(s):
9,705,127
Application Number:
14/376,346
OSTI ID:
1369051
Resource Relation:
Patent File Date: 2013 Feb 01
Country of Publication:
United States
Language:
English

References (7)

Anode current collector, anode, and secondary battery patent February 2013
Nano-silicon composite lithium ion battery anode material coated with poly (3,4-ethylenedioxythiophene) as carbon source and preparation method thereof patent September 2016
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Carbon-coated silicon particle power as the anode material for lithium batteries and the method of making the same patent-application June 2005
Anode Active Material, Anode Including The Anode Active Material, Method Of Manufacturing The Anode, And Lithium Battery Including The Anode patent-application June 2010
Method For Manufacturing Electrode For Power Storage Device And Method For Manufacturing Power Storage Device patent-application March 2011
Polymers with Tailored Electronic Structure for High Capacity Lithium Battery Electrodes journal September 2011