Non-aqueous secondary battery and method for producing the same

Non-aqueous secondary battery and method for producing the same

A non-aqueous secondary battery of the present invention includes a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode material mixture layer containing a lithium-containing transition metal oxide. The negative electrode inclu...

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Hauptverfasser: Yamada, Masayuki, Uchitomi, Kazutaka, Shi, Qiao, Fukunaga, Hiroshi, Matsumoto, Kazunobu
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Sprache:eng
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creator Yamada, Masayuki
Uchitomi, Kazutaka
Shi, Qiao
Fukunaga, Hiroshi
Matsumoto, Kazunobu
description A non-aqueous secondary battery of the present invention includes a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode material mixture layer containing a lithium-containing transition metal oxide. The negative electrode includes a negative electrode material mixture layer and a porous layer containing an insulating material unreactive with lithium formed thereon. The negative electrode material mixture layer includes a negative electrode material including a core and a carbon covering layer covering a surface of the core. The core includes a material containing silicon and oxygen at an atomic ratio x of the oxygen to the silicon of 0.5≦×≦1.5. The material containing silicon and oxygen has a peak at least in a range of 1850 to 1860 eV in an X-ray absorption near edge structure spectrum at the K absorption edge of Si in a state in which discharge of the battery is finished.
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title Non-aqueous secondary battery and method for producing the same
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