LAYERED SOLID-STATE BATTERY
First Claim
1. A layered solid-state battery comprising:
- at least first and second unit cells each of which comprises a positive electrode layer, a solid electrolyte layer, and a negative electrode layer that are sequentially stacked; and
an internal collection layer disposed in contact with each of the positive electrode layers of the first and second unit cells or in contact with each of the negative electrode layers of the first and second unit cells, so as to intervene between the first and second unit cells,wherein the internal collection layer contains an electron conductive material and an ion-conductively electrically conductive specific conductive material.
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Abstract
A layered solid-state battery that includes a first unit cell, a second unit cell, and an internal collection layer that is disposed to intervene between the first unit cell and the second unit cell. Each of the unit cells is constituted of a positive electrode layer, a solid electrolyte layer, and a negative electrode layer that are sequentially stacked. The internal collection layer is disposed to be in contact with each of the negative electrode layers of the unit cells. Also, the internal collection layer contains an electron conductive material and an ion-conductively electrically conductive specific conductive material.
26 Citations
17 Claims
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1. A layered solid-state battery comprising:
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at least first and second unit cells each of which comprises a positive electrode layer, a solid electrolyte layer, and a negative electrode layer that are sequentially stacked; and an internal collection layer disposed in contact with each of the positive electrode layers of the first and second unit cells or in contact with each of the negative electrode layers of the first and second unit cells, so as to intervene between the first and second unit cells, wherein the internal collection layer contains an electron conductive material and an ion-conductively electrically conductive specific conductive material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A layered solid-state battery comprising:
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n pieces of stacked unit cells each of which includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer that are sequentially stacked; n−
1 pieces of internal collection layers between the n pieces of the unit cells, each of the n−
1 pieces of the internal collection layers being disposed in contact with each of the positive electrode layers of adjacent n-pieces of stacked unit cells or in contact with each of the negative electrode layers of the adjacent n-pieces of stacked unit cells;external electrodes having electron conductivity disposed on a surface that is not adjacent to the internal collection layer of a first stage unit cell of the n-pieces of unit cells and on a surface that is not adjacent to the internal collection layer of an n-th stage unit cell of the n-pieces of unit cells;
a positive electrode terminal connected to the internal collection layers that are in contact with the positive electrode layers of the adjacent unit cells among n−
1 pieces of the internal collection layers and the external electrodes that are in contact with the positive electrode layers of the unit cells; anda negative electrode terminal connected to the internal collection layers that are in contact with the negative electrode layers of the unit cells among n−
1 pieces of the internal collection layers and the external electrodes that are in contact with the negative electrode layers of the unit cells, whereinthe internal collection layer contains an electron conductive material and an ion-conductively electrically conductive specific conductive material, and n is a whole number that is 2 or greater. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification