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Title: High energy density secondary lithium batteries

Patent ·
OSTI ID:1805548
; ; ; ; ;

A lithium ion battery includes a positive electrode comprising carbon fibers, a binder composition with conductive carbon, and a lithium rich composition. The lithium rich composition comprises at least one selected from the group consisting of Li1+x(My MzII MwIII)O2 where x+y+z+w = 1, and where M, MII and MIII are interchangeably manganese, nickel and cobalt, and LiM*2-xMx*IIO4, where M* and M*II are manganese and nickel, respectively, with x = 0.5. A negative electrode comprises carbon fibers having bound thereto silicon nanoparticles, and a mesophase pitch derived carbon binder between the silicon nanoparticles and the carbon fibers. An electrolyte is interposed between the positive electrode and the negative electrode. Methods of making positive and negative electrodes are also disclosed.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
10,930,969
Application Number:
16/253,688
OSTI ID:
1805548
Resource Relation:
Patent File Date: 01/22/2019
Country of Publication:
United States
Language:
English

References (25)

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Process for producing carbon anode compositions for lithium ion batteries patent August 2011
Method of Preparing Carbon Nanotube-Olivine Type Lithium Manganese Phosphate Composites and Lithium Secondary Battery Using the Same patent-application September 2013
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Porous structures for energy storage devices patent-application August 2011
Electrochemical Devices for Use in Extreme Conditions patent-application October 2011
Electrode Composite Material, Method for Making the Same, and Lithium Ion Battery Using The Same patent-application February 2012

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