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US 12,119,479 B2Granted
Anode for all solid-state secondary battery, all solid-state secondary battery including the anode, and method of manufacturing the anode
AssigneeSamsung Electronics Co., Ltd.
InventorsSatoshi Fujiki, Seitaro Ito, Taku Watanabe, Yuichi Aihara, Takanobu Yamada
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Abstract
An anode for an all solid-state secondary battery, the anode including an anode collector, and coating lithium distribution layer disposed on the anode collector, wherein the lithium distribution layer includes a metal capable of forming an alloy with lithium.
Claims10
A method of charging an all solid-state secondary battery, the method comprising:
- providing an all solid-state battery comprising
- a cathode layer,
- a solid electrolyte layer on the cathode layer, and
- an anode layer on the solid electrolyte layer and opposite the cathode layer, the anode layer comprising an anode collector, and a lithium distribution layer disposed on the anode collector,
- wherein the lithium distribution layer comprises a metal capable of forming an alloy with lithium and is disposed between the solid electrolyte layer and the anode collector,
- wherein the anode collector comprises a different material than that of the lithium distribution layer,
- wherein a diffusion coefficient of lithium in the lithium distribution layer during charging the all solid-state secondary battery is greater than a diffusion coefficient of lithium in lithium metal;
- applying a voltage between the cathode layer and the anode layer to form a lithium metal layer on the lithium distribution layer and charge the all solid-state secondary battery,
- wherein the lithium distribution layer has a thickness which is greater than or equal to 1 nanometer and less than or equal to 50 nanometers, and
- wherein the lithium distribution layer consists of zinc.
7 more elements
A method of manufacturing an all solid-state secondary battery, the method comprising:
- providing a cathode layer,
- disposing a solid electrolyte layer on the cathode layer, and
- disposing an anode layer on the solid electrolyte layer and opposite the cathode layer to manufacture the all solid-state battery,
- wherein the anode layer comprises
- an anode collector, and
- a lithium distribution layer consists of zinc, wherein the lithium distribution layer is disposed directly on the anode collector and between the solid electrolyte layer and the anode collector, and wherein the anode collector comprises a different material than that of the lithium distribution layer,
- wherein a diffusion coefficient of lithium in the lithium distribution layer is greater than a diffusion coefficient of lithium in lithium metal during charge of the all solid-state secondary battery,
- wherein the lithium distribution layer has a thickness which is greater than or equal to 1 nanometer and less than or equal to 50 nanometers.
5 more elements
Dependencies are inferred from the claim text.