Solid vanadium battery and preparation method thereof

• Main Authors: DING ZURONG, HUANG RUOYUN, MENG JINHONG
• Format: Patent
• Language: Chinese; English
• Published: 07.12.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention provides a solid vanadium battery and a preparation method thereof. The solid vanadium battery comprises an electrolyte, and the electrolyte is pasty and contains a vanadium active substance; additives are added into the electrolyte, the additives are a positive electrode additive and a negative electrode additive, and the positive electrode additive is one or more of anisotropic graphite, stannous mono-sulphate, sodium sulfate, ammonium sulfate, HEDP, glycerol, potassium phosphate, phosphoric acid and the like; and the negative electrode additive is one or more of Na2SO4, HgSO4, BaSO4, phosphoric acid, Bi2O3 and a lanthanum additive. The energy density of the high-energy solid-state vanadium battery designed by the invention is improved by 2-3 times compared with that of a conventional vanadium battery, and the high-energy solid-state vanadium battery has higher charge-discharge current density and a wider application range. 本发明提供一种固体钒电池及其制备方法，所述固体钒电池包括电解质，所述电解质为膏状，其中含有钒活性物质；在所述电解质中添加有添加剂，所述添加剂