Secondary cell electrode and fabrication method, and secondary cell, complex cell, and vehicle

a technology of secondary cells and electrodes, applied in the field of secondary cells, can solve problems such as the reduction of cell performance such as charge or discharge capacity
US20090173632A1Inactive Publication Date: 2009-07-09NISSAN MOTOR CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
NISSAN MOTOR CO LTD
Publication Date
2009-07-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

In a nonaqueous electrolyte cell-oriented electrode (10), an electrode active material layer (12) formed on a collector (1) has a density gradient developed with a gradient of a varied concentration of a solid along a thickness from a surface of the electrode active material layer (12) toward the collector (1), and in a gel electrolyte cell-oriented electrode (30), an electrode active material layer (32) formed on a collector (1) has a density gradient developed with (a) gradient(s) of (a) varied concentration(s) of one or both of an electrolyte salt and a film forming material along a thickness from a surface of the electrode active material layer (32) toward the collector (1).
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Description

[0001] The present application is a divisional of U.S. application Ser. No. 10 / 565,171, filed Jan. 19, 2006, which is the national stage entry of PCT / JP2004 / 011021, filed Jul. 27, 2004, which in turn claims benefit of priority to Japanese application Nos. 2003-283974 and 2003-283975, both filed Jul. 31, 2003, the entire contents of which are incorporated herein by reference.TECHNICAL FIELD

[0002] The present invention relates to a secondary cell electrode, and particularly, to a nonaqueous electrolyte electrode and a gel electrolyte electrode, and further to a fabrication method of the same, as well as to a secondary cell employing the secondary cell electrode, a complex cell employing the secondary cell, and a vehicle employing the secondary cell or the complex cell.BACKGROUND ART

[0003] Recent years have observed, on the background with a rising trend for environmental protection, demands for a promoted introduction of an electric vehicle (EV), a hybrid vehicle (HEV), and a fuel cell p...

Claims

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