Electrode for rechargeable lithium battery and rechargeable lithium battery
AssigneeSanyo Electric Co., Ltd.
InventorsHiroyuki Fujimoto, Hiroko Sanda, Takashi Okamoto, Toyoki Fujihara, Masahiro Iyori, Maruo Kamino, Shigeki Matsuta
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Abstract
An electrode for a rechargeable lithium battery which includes a current collector and a thin film composed of active material that stores and releases lithium and deposited on the current collector, the electrode being characterized in that the current collector has irregularities on its surface and the thin film has spaces extending in a thickness direction of the thin film and configured to increase their width dimensions toward valleys of the irregularities on the current collector surface.
Claims19
An electrode for a rechargeable lithium battery which includes a current collector and a thin film composed of active material that stores and releases lithium and deposited on the current collector, wherein said current collector has irregularities on its surface and said thin film has spaces extending in a thickness direction of the thin film and configured to increase their width dimensions toward valleys of the irregularities on the current collector surface.
Dependencies are inferred from the claim text.