Patents by Inventor Sandra Hansen

Sandra Hansen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for producing a cyclically stable silicon anode for secondary batteries, and silicon anode for secondary batteries
    Patent number: 12738476
    Abstract: A method for producing a silicon anode for secondary batteries. Mesoporous silicon is used for the anode to provide space for volume expansion in the course of intercalation, especially of lithium ions. However, instead of coating a metal film with silicon, here metal is deposited onto a monocrystalline etched silicon wafer. It is essential that the silicon is monocrystalline and that the two flat sides of the wafer are (100)-oriented, i.e., perpendicular to the (100)-direction of the volumetric crystal.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: September 15, 2026
    Assignee: Christian-Albrechts-Universitaet zu Kiel
    Inventors: Rainer Adelung, Sandra Hansen, Joerg Bahr, Juergen Carstensen
  • METHOD FOR PRODUCING A CYCLICALLY STABLE SILICON ANODE FOR SECONDARY BATTERIES, AND SILICON ANODE FOR SECONDARY BATTERIES
    Publication number: 20230075928
    Abstract: A method for producing a silicon anode for secondary batteries. Mesoporous silicon is used for the anode to provide space for volume expansion in the course of intercalation, especially of lithium ions. However, instead of coating a metal film with silicon, here metal is deposited onto a monocrystalline etched silicon wafer. It is essential that the silicon is monocrystalline and that the two flat sides of the wafer are (100)-oriented, i.e., perpendicular to the (100)-direction of the volumetric crystal.
    Type: Application
    Filed: February 3, 2021
    Publication date: March 9, 2023
    Inventors: Rainer Adelung, Sandra Hansen, Joerg Bahr, Juergen Carstensen