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Title: Electrode materials for rechargeable battery

Patent ·
OSTI ID:1531876
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A positive electrode is disclosed for a non-aqueous electrolyte lithium rechargeable cell or battery. The electrode comprises a lithium containing material of the formula Na.sub.yLi.sub.xNi.sub.zMn.sub.1-z-z'M.sub.z'O.sub.d, wherein M is a metal cation, x+y > 1, 0 < z < 0.5, 0.ltoreq.z' < 0.5, y + x + 1 is less than d, and the value of d depends on the proportions and average oxidation states of the metallic elements, Li, Na, Mn, Ni, and M, if present, such that the combined positive charge of the metallic elements is balanced by the number of oxygen anions, d. The inventive material preferably has a spinel or spinel-like component in its structure. The value of y preferably is less than about 0.2, and M comprises one or more metal cations selected preferably from one or more monovalent, divalent, trivalent or tetravalent cations, such as Mg.sup.2+, Co.sup.2+, Co.sup.3+, B.sup.3+, Ga.sup.3+, Fe.sup.2+, Fe.sup.3+, Al.sup.3+, and Ti.sup.4+. The electrode material can be synthesized using an ion-exchange reaction with a lithium salt in an organic-based solvent to partially replace sodium ions of a precursor material with lithium ions.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
Assignee:
UChicago Argonne, LLC (Chicago, IL)
Patent Number(s):
8,557,438
Application Number:
12/868,470
OSTI ID:
1531876
Resource Relation:
Patent File Date: 2010-08-25
Country of Publication:
United States
Language:
English

References (18)

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Nanostructured and layered lithium manganese oxide and method of manufacturing the same patent November 2005
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Structural and Electrochemical Characterization of Composite Layered-Spinel Electrodes Containing Ni and Mn for Li-Ion Batteries journal January 2009
Synthesis of layered LiMnO2 as an electrode for rechargeable lithium batteries journal June 1996
Influence of Substitution on the Structure and Electrochemistry of Layered Manganese Oxides journal November 2003
Layer cathode methods of manufacturing and materials for Li-ion rechargeable batteries patent January 2008
A new variety of LiMnO2 with a layered structure journal August 1996
Manganese oxide composite electrodes for lithium batteries patent December 2007
Sodium ion secondary battery patent April 2010
Layered LiCoO[sub 2] with a Different Oxygen Stacking (O2 Structure) as a Cathode Material for Rechargeable Lithium Batteries journal January 2000
The significance of the Li2MnO3 component in ‘composite’ xLi2MnO3·(1−x)LiMn0.5Ni0.5O2 electrodes journal October 2004
Electrodes with High Power and High Capacity for Rechargeable Lithium Batteries journal February 2006
Li2MnO3-stabilized LiMO2 (M = Mn, Ni, Co) electrodes for lithium-ion batteries journal January 2007
Rechargeable positive electrodes patent April 2002
Lithium–manganese oxide electrodes with layered–spinel composite structures xLi2MnO3·(1−x)Li1+yMn2−yO4 (0<x<1, 0⩽y⩽0.33) for lithium batteries journal May 2005
Layered LixMn1 − yNiyO2 intercalation electrodes journal January 2000
Lithium–manganese–nickel-oxide electrodes with integrated layered–spinel structures for lithium batteries journal February 2007

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