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Method and apparatus for preparation of spherical metal carbonates and lithium metal oxides for lithium rechargeable batteries

Patent ·
OSTI ID:985399
 [1];  [2]
  1. Naperville, IL
  2. Downers Grove, IL
+ Show Author Affiliations

A number of materials with the composition Li.sub.1+xNi.sub..alpha.Mn.sub..beta.Co.sub..gamma.M'.sub..delta.O.sub.2-- zF.sub.z (M'=Mg,Zn,Al,Ga,B,Zr,Ti) for use with rechargeable batteries, wherein x is between about 0 and 0.3, .alpha. is between about 0.2 and 0.6, .beta. is between about 0.2 and 0.6, .gamma. is between about 0 and 0.3, .delta. is between about 0 and 0.15, and z is between about 0 and 0.2. Adding the above metal and fluorine dopants affects capacity, impedance, and stability of the layered oxide structure during electrochemical cycling. Another aspect of the invention includes materials with the composition Li.sub.1+xNi.sub..alpha.Co.sub..beta.Mn.sub..gamma.M'.sub..delta.O.sub.yF- .sub.z (M'=Mg,Zn,Al,Ga,B,Zr,Ti), where the x is between 0 and 0.2, the .alpha. between 0 and 1, the .beta. between 0 and 1, the .gamma. between 0 and 2, the .delta. between about 0 and about 0.2, the y is between 2 and 4, and the z is between 0 and 0.5.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-31109-ENG-38
Assignee:
U Chicago Argonne LLC (Chicago, IL)
Patent Number(s):
7,435,402
Application Number:
10/903,514
OSTI ID:
985399
Country of Publication:
United States
Language:
English

References (3)

Understanding the Anomalous Capacity of Li / Li [ NixLi ( 1 / 3 − 2x / 3 ) Mn ( 2 / 3 − x / 3 ) ]  O2 Cells Using In Situ X-Ray Diffraction and Electrochemical Studies journal January 2002
Layered Cathode Materials Li[Ni[sub x]Li[sub (1/3−2x/3)]Mn[sub (2/3−x/3)]]O[sub 2] for Lithium-Ion Batteries journal January 2001
Layered Lithium Insertion Material of LiNi 1/2 Mn 1/2 O 2 : A Possible Alternative to LiCoO 2 for Advanced Lithium-Ion Batteries journal August 2001

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