High energy density plural chalcogenide cathode-containing cell

Details High energy density plural chalcogenide cathode-containing cell High energy density plural chalcogenide cathode-containing cell

1979-08-02

1980-11-11

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429218, H01M 614

Patent

active

042333750

ABSTRACT:
The present invention is directed to electric current-producing cells having specified mixed cathodes. The cells comprise: (a) an anode having as its anode-active material one or more metals selected from the group consisting of the Periodic Table Group IA metals, Group IB metals, Group IIA metals and Group IIB metals; (b) a cathode having as its cathode-active material a mixture containing: (i) one or more cathode-active, high energy density chalcogenide compounds selected from the group consisting of VS.sub.a, VO.sub.a, C.sub.x S, MoO.sub.z and MoS.sub.z, wherein a is a numerical value of about 1.8 to about 2.7, wherein x is a numerical value of about 4 to about 16 and wherein z is a numerical value of about 2.5 to about 3.5; and (ii) one or more cathode-active, high rate chalcogenide compounds selected from the group consisting of TiS.sub.y, TiSe.sub.y and VSe.sub.y wherein y is a numerical value of about 1.8 to about 2.2; and (c) an electrolyte which is chemically inert with respect to said anode and said cathode and which permits the migration of ions between said anode and said cathode. A preferred embodiment contains a lithiumactive material anode and a cathode containing a mixture of MoS.sub.3 and TiS.sub.2.

REFERENCES:
patent: 3791867 (1974-02-01), Broadhead et al.
patent: 3992222 (1976-11-01), Walsh et al.
patent: 4009052 (1977-02-01), Whittingham
patent: 4066824 (1978-01-01), Rao et al.
patent: 4075397 (1978-02-01), Francis et al.
patent: 4118549 (1978-10-01), Liang et al.
patent: 4144384 (1979-03-01), Jacobson et al.

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