ELECTRODE BODY AND ALL SOLID STATE BATTERY
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Abstract
The problem of the present invention is to provide an electrode body excellent in cycling characteristics, which restrains interface resistance from increasing with time. The present invention solves the above-mentioned problem by providing an electrode body comprising: an electrode active material comprising an oxide, a first solid electrolyte material comprising a sulfide, and a second solid electrolyte material disposed at an interface between the electrode active material and the first solid electrolyte material, wherein a difference between electronegativity of a skeleton element in the second solid electrolyte material and electronegativity of an oxygen element is smaller than a difference between electronegativity of a skeleton element bonded to a sulfur element in the first solid electrolyte material and electronegativity of an oxygen element.
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Citations
22 Claims
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1-11. -11. (canceled)
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12. An electrode body comprising:
- an electrode active material comprising an oxide, a first solid electrolyte material comprising a sulfide, and a second solid electrolyte material disposed at an interface between the electrode active material and the first solid electrolyte material,
wherein a difference between electronegativity of a skeleton element in the second solid electrolyte material and electronegativity of an oxygen element is smaller than a difference between electronegativity of a skeleton element bonded to a sulfur element in the first solid electrolyte material and electronegativity of the oxygen element. - View Dependent Claims (13, 14, 15, 16)
- an electrode active material comprising an oxide, a first solid electrolyte material comprising a sulfide, and a second solid electrolyte material disposed at an interface between the electrode active material and the first solid electrolyte material,
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17. An all solid state battery comprising:
- a cathode active material layer containing a cathode active material, an anode active material layer containing an anode active material, and a solid electrolyte layer formed between the cathode active material layer and the anode active material layer,
wherein at least one electrode active material of the cathode active material and the anode active material comprises an oxide, a second solid electrolyte material is disposed at an interface between the electrode active material comprising the oxide and a first solid electrolyte material comprising a sulfide, and a difference between electronegativity of a skeleton element in the second solid electrolyte material and electronegativity of an oxygen element is smaller than a difference between electronegativity of a skeleton element bonded to a sulfur element in the first solid electrolyte material and electronegativity of the oxygen element. - View Dependent Claims (18, 19, 20, 21, 22)
- a cathode active material layer containing a cathode active material, an anode active material layer containing an anode active material, and a solid electrolyte layer formed between the cathode active material layer and the anode active material layer,
Specification