SOLID ELECTROLYTE, MANUFACTURING METHOD OF SOLID ELECTROLYTE, BATTERY AND BATTERY PACK
According to one embodiment, a solid electrolyte includes a sintered body of ceramic grains. The sintered body includes a crystal plane having an ion conducting path. The crystal plane is oriented in a direction which intersects at least one surface of the solid electrolyte.
1 . A solid electrolyte comprising:
a ceramic-grain sintered body comprising a crystal plane having an ion conducting path, and the crystal plane is oriented in a direction which intersects at least one surface of the solid electrolyte.
2 . The solid electrolyte according to claim 1 , wherein
the direction intersects said at least one surface of the solid electrolyte in a range of not more than 30° with respect to a perpendicular of said at least one surface of the solid electrolyte.
3 . The solid electrolyte according to claim 1 , wherein
the crystal plane is oriented in a direction which perpendicularly intersects said at least one surface of the solid electrolyte.
4 . The solid electrolyte according to claim 1 , wherein
the ceramic-grain sintered body has lithium-ion conduction.
5 . A battery comprising:
a positive electrode;
a negative electrode; and
a solid electrolyte provided between the positive electrode and the negative electrode, wherein
the solid electrolyte comprises a ceramic-grain sintered body comprising a crystal plane having an ion conducting path, and the crystal plane is oriented in a direction which intersects the positive electrode and the negative electrode.
6 . A battery pack comprising the battery according to claim 5 .
7 . A manufacturing method of solid electrolyte comprising:
applying an alternating electric field in a direction which intersects at least one surface of a solid electrolyte precursor comprising a ceramic-grain sintered body comprising a crystal plane having an ion conducting path, while heating the solid electrolyte precursor, thereby orienting the crystal plane.