Method for making a coated electrode material for an electrochem

Details Method for making a coated electrode material for an electrochem Method for making a coated electrode material for an electrochem

1997-10-31

2000-06-06

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

4292311, 429223, 423594, H01M 452

Patent

active

060716495

ABSTRACT:
A method for making a coated electrode material for a lithium rechargeable electrochemical cell (10) includes the steps of mixing (65) Co and Li salts, then either dissolving (70) the Li and Co salts in water to form a solution or heating (70) the salts to form a melt. A lithium nickel oxide material is mixed (80) with the solution or the melt to form a mixture, and the mixture is dried (85) to result in LiCoO.sub.2 -coated LiNiO.sub.2. Increased performance can be achieved by including a post-treatment step in which the LiCoO.sub.2 -coated LiNiO.sub.2 is heated (90) to about 700.degree. C.

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