Electrode for solid-state batteries and solid-state battery
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsNorihiro Ose, Tomoya Suzuki, Hajime Hasegawa, Kazuo Yaso, Hideaki Nishimura, Yuki Matsushita
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Abstract
An electrode for solid-state batteries, comprising a PTC resistor layer, and a solid-state battery comprising the electrode. The electrode may be an electrode for solid-state batteries, wherein the electrode comprises an electrode active material layer, a current collector and a PTC resistor layer which is disposed between the electrode active material layer and the current collector and which is in contact with the electrode active material layer; wherein the PTC resistor layer contains an electroconductive material, an insulating inorganic substance and a polymer.
Claims6
An electrode for solid-state batteries, the electrode comprising
- an electrode active material layer, a current collector and a positive temperature coefficient (PTC) resistor layer which is disposed between the electrode active material layer and the current collector and which is in contact with the electrode active material layer;
- wherein
- the PTC resistor layer contains an electroconductive material, an insulating inorganic substance and a polymer;
- when the PTC resistor layer is divided into an A layer and a B layer in order from nearest to furthest from the electrode active material layer so that a ratio of a thickness of the A layer to a thickness of the B layer is 1:2 in a thickness direction of the PTC resistor layer;
- and
- when a total volume of the electroconductive material, the insulating inorganic substance and the polymer in the A layer is determined as 100 volume %, and when a total volume of the electroconductive material, the insulating inorganic substance and the polymer in the B layer is determined as 100 volume %, a volume ratio VA of the insulating inorganic substance in the A layer is smaller than a volume ratio VB of the insulating inorganic substance in the B layer.
Dependencies are inferred from the claim text.