Anode for Sodium-ion and Potassium-ion Batteries

摘要

A first method for fabricating an anode for use in sodium-ion and potassium-ion batteries includes mixing a conductive carbon material having a low surface area, a hard carbon material, and a binder material. A carbon-composite material is thus formed and coated on a conductive substrate. A second method for fabricating an anode for use in sodium-ion and potassium-ion batteries mixes a metal-containing material, a hard carbon material, and binder material. A carbon-composite material is thus formed and coated on a conductive substrate. A third method for fabricating an anode for use in sodium-ion and potassium-ion batteries provides a hard carbon material having a pyrolyzed polymer coating that is mixed with a binder material to form a carbon-composite material, which is coated on a conductive substrate. Descriptions of the anodes and batteries formed by the above-described methods are also provided.

主权项

1. A hard carbon anode for use with sodium-ion and potassium-ion batteries, the anode comprising:
a conductive substrate; a carbon-composite material overlying the conductive substrate comprising:
a hard carbon material;a conductive carbon material having a low surface area;a binder material; and, wherein a carbon-composite material is defined herein as a mixture of two or more different materials, in which at least one material is a carbon material.