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Title: Non-aqueous electrolytes for lithium ion batteries

The present invention is generally related to electrolytes containing anion receptor additives to enhance the power capability of lithium-ion batteries. The anion receptor of the present invention is a Lewis acid that can help to dissolve LiF in the passivation films of lithium-ion batteries. Accordingly, one aspect the invention provides electrolytes comprising a lithium salt; a polar aprotic solvent; and an anion receptor additive; and wherein the electrolyte solution is substantially non-aqueous. Further there are provided electrochemical devices employing the electrolyte and methods of making the electrolyte.
Inventors:
;
Issue Date:
OSTI Identifier:
1225698
Assignee:
UCHICAGO ARGONNE LLC ANL
Patent Number(s):
9,184,428
Application Number:
11/373,054
Contract Number:
W31-109-ENG-38
Resource Relation:
Patent File Date: 2006 Mar 10
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Other works cited in this record:

Non-aqueous electrolyte secondary battery
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Non-aqueous electrolyte secondary cell having shuttle agent
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Chemical overcharge protection of lithium and lithium-ion secondary batteries
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Solid polymer electrolyte electrochemical storage cell containing a redox shuttle additive for overcharge protection
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Electrochemical storage cell containing a substituted anisole or di-anisole redox shuttle additive for overcharge protection and suitable for use in liquid organic and solid polymer electrolytes
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journal, October 2001

Electroactivity of natural and synthetic triphylite
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Rechargeable cathodes based on Li2CrxMn2−xO4
journal, April 1995

Lithium Bis(oxalato)borate Stabilizes Graphite Anode in Propylene Carbonate
journal, September 2002
  • Xu, Kang; Zhang, Shengshui; Poese, Bruce A.
  • Electrochemical and Solid-State Letters, Vol. 5, Issue 11, p. A259-A262
  • DOI: 10.1149/1.1510322

Electronically conductive phospho-olivines as lithium storage electrodes
journal, September 2002
  • Chung, Sung-Yoon; Bloking, Jason T.; Chiang, Yet-Ming
  • Nature Materials, Vol. 1, Issue 2, p. 123-128
  • DOI: 10.1038/nmat732

Phospho-olivines as Positive-Electrode Materials for Rechargeable Lithium Batteries
journal, April 1997
  • Padhi, A. K.
  • Journal of The Electrochemical Society, Vol. 144, Issue 4, p. 1188-1194
  • DOI: 10.1149/1.1837571

Anion receptor for enhanced thermal stability of the graphite anode interface in a Li-ion battery
journal, June 2003

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