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1. (WO2011157755) LITHIUM ELECTROCHEMICAL ACCUMULATOR HAVING A BIPOLAR ARCHITECTURE AND OPERATING WITH A LITHIUM-SULPHUR COMPOUND ELECTRODE PAIR

Pub. No.:    WO/2011/157755    International Application No.:    PCT/EP2011/059949
Publication Date: Dec 22, 2011 International Filing Date: Jun 15, 2011
IPC: H01M 10/52
H01M 4/48
H01M 4/58
H01M 4/505
H01M 4/525
H01M 10/052
Applicants: Commissariat à l'énergie atomique et aux énergies alternatives
BARCHASZ, Céline
CHAMI, Marianne
PATOUX, Sébastien
Inventors: BARCHASZ, Céline
CHAMI, Marianne
PATOUX, Sébastien
Title: LITHIUM ELECTROCHEMICAL ACCUMULATOR HAVING A BIPOLAR ARCHITECTURE AND OPERATING WITH A LITHIUM-SULPHUR COMPOUND ELECTRODE PAIR
Abstract:
The invention relates to a lithium electrochemical accumulator comprising at least a first electrochemical cell and at least a second electrochemical cell separated from one another by a current collecting substrate. A first face of the aforementioned substrate supports an electrode of the first electrochemical cell and a second face, opposite the first, supports an electrode, of opposite sign, of the second electrochemical cell. Each cell comprises a positive electrode and a negative electrode separated by an electrolyte. The invention is characterised in that the positive electrode comprises a lithium compound and the negative electrode comprises elementary sulphur.