Invention Grant
- Patent Title: In situ formation of sulfur particles using organic acids in the presence of polymer functionalized carbon
-
Application No.: US15339224Application Date: 2016-10-31
-
Publication No.: US10312517B2Publication Date: 2019-06-04
- Inventor: John Muldoon , Claudiu B. Bucur
- Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
- Applicant Address: US KY Erlanger
- Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
- Current Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
- Current Assignee Address: US KY Erlanger
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: H01M4/60
- IPC: H01M4/60 ; B01J13/06 ; H01M4/04 ; H01M4/36 ; H01M4/38 ; H01M4/62 ; H01M4/13 ; H01M4/139 ; H01M10/052 ; H01M4/02

Abstract:
A sulfur particle containing a core of elemental sulfur having homogeneously dispersed particles of a conductive carbon and branched polyethyleneimine; and a coating of branched polyethyleneimine (bPEI) encapsulating the core is provided. In the sulfur particle the dispersed particles of conductive carbon are associated with the bPEI. A cathode having an active material containing the sulfur particles and a sulfur loading of 1.0 mg S/cm2 to 10 mg/cm2 and a battery containing the cathode are also provided.
Public/Granted literature
Information query