Solid-electrolyte secondary cell

Details Solid-electrolyte secondary cell Solid-electrolyte secondary cell

1987-09-11

1988-12-06

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429218, 2521821, H01M 618

Patent

active

047896108

ABSTRACT:
A solid-electrolyte secondary cell comprising a positive and a negative electrode composed of a copper chevrel compound (Cu.sub.x Mo.sub.6 S.sub.8), and copper ion conductive solid electrolyte is provided. This secondary cell is capable of charging with a current as high as about 1 mA/cm.sup.2, can stand high temperatures of up to 100.degree. C. and maintains its initial performance even after long-time charging and discharging. A cell small in voltage drop during dicharge is also provided by using a heat treated mixture of a copper chevrel compound and a copper ion conductive solid electrolyte represented by the formula K.sub.q Rb.sub.1-q Cu.sub.4 I.sub.2-p Cl.sub.3+3 (0.ltoreq.q.ltoreq.0.5, 0.25.ltoreq.p.ltoreq.1.0) for both positive and negative electrodes.

REFERENCES:
patent: 4136233 (1979-01-01), Eisenberg et al.
patent: 4281048 (1981-07-01), Haering et al.
patent: 4377624 (1983-03-01), Joshi et al.
Yamamoto et al., An all Solid-State Cell with a High-Copper Ion Conductor Electrolyte, Chem Abstracts, vol. 107, 1987; 103:25994t.
Taniguchi et al., Manufacture of a Thin-Film Chevrel-Phase Compound by On-Substrate-Reaction Method, Chem Abstracts, vol. 105, 1986; 105:27148c.

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