A solid-state battery with controlled lithium dendrite growth

A solid-state battery and lithium dendrite technology, applied in the field of solid-state batteries based on this electrolyte, can solve problems such as potential safety hazards and easy triggering of short-circuit accidents, and achieve the effect of improving interface impedance and improving conduction efficiency
CN111769331BActive Publication Date: 2021-07-09WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
Publication Date
2021-07-09

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Abstract

The invention discloses a preparation method and a battery of a solid electrolyte for controlling the orderly growth of lithium dendrites. Lamination with double-sided conductive adhesive, on the one hand, can control the growth direction of lithium dendrites in an orderly manner in the gap between the solid electrolyte and the metal lithium bonding surface, so that lithium dendrites can grow oppositely in the gap and avoid lithium dendrites. Piercing the solid electrolyte, on the other hand, the carbon coating can improve the interfacial impedance between the solid electrolyte and the cathode material and improve the conduction efficiency of lithium ions.
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Description

technical field

[0001] The invention belongs to the technical field of material synthesis, and in particular relates to a preparation method of a solid-state electrolyte for controlling the orderly growth direction of lithium dendrites, and a solid-state battery based on the electrolyte. Background technique

[0002] With the continuous improvement of the energy density of lithium-ion batteries, it is difficult for the traditional graphite anode to meet the needs of the future energy situation. The theoretical capacity of the metal lithium anode reaches 3866 mAh / g, and it has excellent conductivity, which is a perfect anode material However, lithium dendrites are easy to grow on the surface of the negative electrode during the shuttle conduction process of lithium ions in the electrolyte, and the growth of lithium dendrites easily penetrates the separator, causing direct contact between the positive and negative electrodes of the battery and causing a short circuit, resulting...

Claims

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