Ricoh Company, Ltd.

Nobuo Katagiri

Toshiyuki Kabata

Toshiyuki Ohsawa

Toshishige Fujii

Okitoshi Kimura

Yoshitaka Hayashi

Yoshiko Kurosawa

Tomohiro Inoue

Hiroyuki Iechi

Yumiko Suzuki

A negative electrode for a lithium secondary battery includes at least two kinds of carbon materials with a spacing of lattice plane (d.sub.002) of 3.4 .ANG. or less in the direction of the C axis thereof. A lithium secondary battery using this negative electrode is provided.

Negative electrode for lithium secondary battery and lithium secondary

A non-aqueous secondary lithium battery includes a positive electrode; a negative electrode which including at least one component selected from the group consisting of lithium, a lithium alloy, and a host compound which forms an intercalation compound or complex in combination with lithium; and an electrolytic solution or solid electrolyte containing a silicone compound.

Non-aqueous secondary lithium battery

A positive electrode is composed of a film-shaped active material, which is composed of a conducting polymer serving as a first active material, and an electrochemical active material serving as a second active material which is uniformly dispersed in the shape of particles in the conducting polymer, with the parts-by-weight ratio of the second active material to the first active material being 3 to 9 parts of the second active material to 7 to 1 part of the first active material, when the total of the first active material and the second active material is 10 parts. A secondary battery is fabricated using the above positive electrode.

Positive electrode and secondary battery using the same

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Yokohama, Japan

Nobuo Katagiri