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US 5,882,819 AGranted
Sulfide-series electrode material and secondary battery with high energy density
AssigneeYazaki Corporation
InventorsKatsuhiko Naoi, Akihiko Torikoshi, Yasuhiro Suzuki
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Abstract
An electrode material includes a sulfide compound containing a tetrazole ring as an active substance. The secondary battery using such a material provides an extremely high energy density.
Claims19
A secondary battery comprising:
- a cathode made of a sulfide material having a tetrazole ring as an active material, wherein said tetrazole ring is a phenyl tetrazole ring;
- and
- an anode comprising an alkali metal.
A secondary battery comprising:
- a cathode made of a sulfide material having a tetrazole ring as an active material, wherein said sulfide material is 5,5'-dithiobis (1-phenyl tetrazole), 5,5'-trithiobis (1-phenyltetrazole), or 5,5'-tetrathiobis (1-phenyltetrazole);
- and
- an anode comprising an alkali metal.
An electrode comprising:
- an electrode material including a sulfide compound containing a tetrazole ring as an active substance, wherein the tetrazole ring of the sulfide compound includes a material represented by the following formula:
- ##STR10## wherein each R represents a hydrogen atom or an organic group, provided that at least one R is a methyl group, and n is 1.
An electrode comprising:
- an electrode material including a sulfide compound containing a tetrazole ring as an active substance, wherein the tetrazole ring of the sulfide compound includes a material represented by the following formula:
- ##STR11## wherein each R represents a hydrogen atom or an organic group, provided that at least one R is a methyl group, and n is 2.
An electrode comprising:
- an electrode material including a sulfide compound containing a tetrazole ring as an active substance, wherein the tetrazole ring of the sulfide compound includes a material represented by the following formula:
- ##STR12## wherein each R represents a hydrogen atom or an organic group, provided that at least one R is a phenyl group, and n represents an integer from 0 to 5.
A secondary battery comprising:
- a cathode made of a sulfide material having a tetrazole ring as an active material, wherein the tetrazole ring of the sulfide material includes a material represented by the following formula:
- ##STR13## wherein each R represents a hydrogen atom or an organic group, provided that at least one R is a methyl group, and n is 1;
- and
- an anode comprising an alkali metal.
1 more element
A secondary battery comprising:
- a cathode made of a sulfide material having a tetrazole ring as an active material, wherein the tetrazole ring of the sulfide material includes a material represented by the following formula:
- ##STR14## wherein each R represents a hydrogen atom or an organic group, provided that at least one R is a methyl group, and n is 2;
- and
- an anode comprising an alkali metal.
1 more element
A secondary battery comprising:
- a cathode made of a sulfide material having a tetrazole ring as an active material, wherein the tetrazole ring of the sulfide material includes a material represented by the following formula:
- ##STR15## wherein each R represents a hydrogen atom or an organic group, provided that at least one R is a phenyl group, and n represents an integer from 0 to 5;
- and
- an anode comprising an alkali metal.
1 more element
A secondary battery comprising:
- a cathode made of a sulfide material having a tetrazole ring as an active material, wherein said sulfide material is 5,5'-dithiobis (1-phenyltetrazole), 5,5'-trithiobis (1-phenyltetrazole), or 5,5'-tetrathiobis (1-phenyltetrazole);
- and
- an anode comprising an alkali metal.
Dependencies are inferred from the claim text.