US 2017/0256795 A1 · CATHODE MATERIAL PREPARATION METHOD, CATHODE MATERIAL AND LITHIUM-ION BATTERY

Abstract

The present invention is related to the method for producing the cathode material, cathode material and lithium-ion battery. The present invention provides the higher capacity and number of recharge cycles. The lithium battery comprises the metallic lithium anode, electrolyte and a cathode comprising metallic current collector coated with a suspension (concentration 0.1-1 g/mL) of composite material comprising V2O5 nanorods in graphene shell, dissolved in acetone.

Claims12

Dependent claims

A method for producing composite cathode material comprising the following steps:

synthesis of V2O5 hydrogel or xerogel;
heating a mixture of vanadia hydrogel (or xerogel) and carbon material in sealed Teflon autoclave at 130-200° C. and pressure 100-600 MPa for 24 hours, to obtain composite material comprising vanadia nanorods in graphene shell;
centrifuging of the resulting composite material;
washing the composite material;
drying the composite material at 50° C.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/598,342Filed 18 May 2017

Priority

RU 201414669621 Nov 2014

Published

7 Sep 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification32 codes

H01M 4/583
Of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures,…:…
H01M 4/587
Carbonaceous material, e.g. graphite-intercalation compounds or CFx: for inserting or intercalating light metals
B01J 13/046
By physical processes, e.g. drying, spraying: combined with gelification or coagulation
B82Y 30/00
Nanotechnology for materials or surface science

Cathode material preparation method, cathode material and lithium-ion battery

Life of this patent

Cathode material preparation method, cathode material and lithium-ion battery

Life of this patent

Abstract

Claims12