Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1989-07-12
1990-12-25
Niebling, John F.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
423599, H01M 450
Patent
active
049802518
ABSTRACT:
A method of synthesizing a lithium manganese oxide in accordance with the formula Li.sub.1-x Mn.sub.2 O.sub.4 in which 0.ltoreq.x<1 and having a spinel-type crystal structure includes forming a mixture in finely divided solid form of at least one lithium salt such as Li.sub.2 CO.sub.3 which decomposes when heated in air to form an oxide of lithium, and at least one manganese salt such as MnCO.sub.3 which decomposes when heated in air to form an oxide of manganese. The mixture is heated in an oxidizing atmosphere to a temperature in the range 200.degree.-600.degree. C. to decompose the salts and to obtain the Li.sub.1-x Mn.sub.2 O.sub.4 having a spinel-type crystal structure.
REFERENCES:
patent: 4567031 (1986-01-01), Riley
35-782 JCPDS-ICDD Copyright 1988 (1 page).
De Kock Annemare
Thackeray Michael M.
CSIR
Gorgos Kathryn
Niebling John F.
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