| 摘要 |
It is an object to provide a cathode for a secondary lithium battery in which adhesiveness and flexibility thereof are simultaneously achieved and the thickness thereof is made large, and the secondary lithium ion battery that has a large capacity and is excellent in safety and cycle life using the cathode. The cathode includes a current collector and a cathode mixture layer formed on the surface of the current collector. The cathode mixture layer is formed by stacking two layers one on another, each of which contains a cathode active material, a conductive material and a binder, and the cathode active material contains a lithium-containing composite oxide that forms a polyanion. Of the two layers, the binder that composes a first layer that is in contact with the current collector contains a polymer formed by polymerizing at least one of monomers consisting of a monomer derived from 1-olefin and a monomer derived from a vinyl compound; and the binder that forms a second layer formed on the first layer contains a fluorine resin.
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