Sanyo Electric Co., Ltd.

Kenji Asaoka

Shin Fujitani

Masahisa Fujimoto

Hiroshi Nakajima

Ryuji Ohshita

Hiroshi Kurokawa

Hisaki Tarui

Hiromasa Yagi

Yoichi Domoto

Masaki Shima

Yoshio Kato

Shigeki Matsuta

Hiroaki Ikeda

Yasuyuki Kusumoto

Toshikazu Yoshida

An electrode for a lithium battery having a thin film composed of active material capable of lithium storage and release, e.g., a microcrystalline or amorphous silicon thin film, provided on a current collector, the electrode being characterized in that a constituent of the current collector is diffused into the thin film.

Electrode for lithium batteries and rechargeable lithium battery

An electrode for lithium batteries, in which a thin film of active material capable of storage and release of lithium, such as a microcrystalline or amorphous silicon thin film, is provided, through an interlayer, on a current collector, the electrode being characterized in that the interlayer comprises a material alloyable with the thin film of active material.

An electrode for a rechargeable lithium battery characterized in that thin films of active material capable of lithium storage and release, i.e., microcrystalline or amorphous silicone thin films are deposited on opposite faces of a plate-form current collector.

Electrode for rechargeable lithium battery and rechargeable lithium battery

An electrode for a lithium battery having a thin film composed of active material capable of lithium storage and release, e.g., a microcrystalline or amorphous silicon thin film, provided on a current collector, the electrode being characterized in that the current collector has a surface roughness Ra of 0.01 &#x3bc;m or greater.

Electrode for use in lithium battery and rechargeable lithium battery

In an electrode for a lithium battery having a lithium storing and releasing active thin film provided on a current collector, such as a microcrystalline or amorphous silicon thin film, the electrode is characterized in that the thin film is divided into columns by gaps formed therein in a manner to extend in its thickness direction and that the columnar portions are at their bottoms adhered to the current collector.

An electrode for a rechargeable lithium battery which includes a thin film composed of active material that expands and shrinks as it stores and releases lithium, e.g., a microcrystalline or amorphous silicon thin film, deposited on a current collector, characterized in that said current collector exhibits a tensile strength (=tensile strength (N/mm) per sectional area of the current collector material&#xd7;thickness (mm) of the current collector) of not less than 3.82 N/mm.

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Sumoto, Japan

Kenji Asaoka