Patent ID: 9337508
Filing Date: 2016-05-10
CPC Classification: H01M,Y02E,Y02T

Claim Text:
1. An electrochemical lithium accumulator comprising a bipolar architecture comprising at least one first electrochemical cell and at least one second electrochemical cell separated from each other by a current-collecting substrate, which current-collecting substrate supports on a first face an electrode of said first electrochemical cell and on a second face opposite to said first face, an electrode of said second electrochemical cell, each electrochemical cell comprising a positive electrode and a negative electrode separated by an electrolyte, wherein the electrolyte is a liquid electrolyte comprising a lithium salt and a lithium polysulfide additive; the positive electrode comprises a material selected from: phosphate oxides of formula LiM oxides of formula LiZO the negative electrode comprises a material selected from lithium and titanium mixed oxides, and Li