Electrochemical cell

Details Electrochemical cell Electrochemical cell

1993-08-02

1995-08-15

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

2521821, H01M 448

Patent

active

054418321

ABSTRACT:
A secondary cell includes as its active cathode material a first insertion material, such as V.sub.6 O.sub.13, into which ions are inserted during discharge. To prevent irreversible lattice changes leading to a decline in capacity the discharge should be terminated before a threshold cell voltage is crossed. Such irreversible changes are suppressed by including in a surface coating of the cathode a minor proportion of a second insertion material, such as a titanium oxide, whose discharge commences before the threshold cell voltage is reached.

REFERENCES:
patent: 4310609 (1982-01-01), Liang et al.

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