ELECTRODE FOR ELECTROCHEMICAL DEVICE
First Claim
1. An electrode for an electrochemical device, comprising a current collector, a thin layer formed on at least a part of a surface of the current collector, and an active material layer formed on a surface of the thin layer,wherein the active material layer comprises an active material that does not form a chemical bond with a component forming the current collector, and the active material comprises one selected from the group consisting of oxides, nitrides and carbides of silicon, and oxides, nitrides and carbides of tin, andthe thin layer consists essentially of a component with a polarizability higher than that of the component forming the current collector.
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Accused Products
Abstract
A problem to be solved by the invention is to provide an electrode for an electrochemical device which has a high capacity, suppresses the separation of an active material due to charge/discharge, and exhibits good cycle characteristics. To solve this problem, in the invention, an electrode 1 for an electrochemical device includes a current collector 2, an active material layer 4 formed over the current collector 2, and a thin layer 3 formed at least a part of the space between the current collector 2 and the active material layer 4. The active material layer 4 includes an active material which does not form a chemical bond with a component forming the current collector 2, and the like, and the thin layer 3 includes a component with a polarizability higher than that of the component forming the current collector 2.
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Citations
15 Claims
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1. An electrode for an electrochemical device, comprising a current collector, a thin layer formed on at least a part of a surface of the current collector, and an active material layer formed on a surface of the thin layer,
wherein the active material layer comprises an active material that does not form a chemical bond with a component forming the current collector, and the active material comprises one selected from the group consisting of oxides, nitrides and carbides of silicon, and oxides, nitrides and carbides of tin, and the thin layer consists essentially of a component with a polarizability higher than that of the component forming the current collector.
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2. (canceled)
Specification