Invention Grant
- Patent Title: Method for producing composite powder, and for a porous composite material for electrochemical electrodes that is produced using the composite powder
-
Application No.: US14409466Application Date: 2013-06-12
-
Publication No.: US09960410B2Publication Date: 2018-05-01
- Inventor: Christian Neumann , Jörg Becker , Sascha Pihan , Matthias Otter
- Applicant: Heraeus Quarzglas GmbH & Co. KG
- Applicant Address: DE Hanau
- Assignee: Heraeus Quarzglas GmbH & Co. KG
- Current Assignee: Heraeus Quarzglas GmbH & Co. KG
- Current Assignee Address: DE Hanau
- Agency: Tiajoloff & Kelly LLP
- Priority: DE102012011946 20120618
- International Application: PCT/EP2013/062128 WO 20130612
- International Announcement: WO2013/189803 WO 20131227
- Main IPC: H01M4/04
- IPC: H01M4/04 ; H01M4/583 ; H01M4/587 ; B22F1/00 ; H01M4/134 ; H01M4/1395 ; H01M4/36 ; H01M4/38 ; H01M4/62 ; H01M10/052 ; C04B38/04 ; C01B32/00 ; C01B32/05 ; C01B32/30 ; H01M4/02 ; C03B37/005 ; C03B19/14 ; C04B111/00

Abstract:
The invention relates to a method for economically producing a composite powder made of carbon and electrochemical active material. According to the invention, a melt made of a meltable carbon precursor substance having nanoparticles made of an active material distributed in the melt is provided, and said melt is divided into the composite powder, in which nanoparticles made of the active material are embedded in a matrix made of the carbon precursor substance. A porous composite material produced using the composite powder is used to produce an electrode for a secondary battery, in particular for use as an anode material. The production of the composite material comprises the following steps: providing template particles made of inorganic template material, producing a powder mixture of the composite powder and the template particles, heating the powder mixture and softening the composite powder in such a way that the composite powder penetrates the pores and is carbonated, and removing the template material to form the porous electrochemical composite material.
Public/Granted literature
Information query