Stmicroelectronics(tours) Sas

Centre National De La Recherche Scientifique

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Institut Polytechnique De Bordeaux

Stmicroelectronics (rousset) Sas

Renault S.a.s.

Delphine Guy-Bouyssou

Severin Larfaillou

Frederic Le Cras

Frédéric Le Cras

Pierre Bouillon

Frédéric Cantin

Brigitte Pecquenard

Emilien Bouyssou

Nicolas Thouvenel

Vincent Dubois

Franck Ferreira Gomes

Séverin Larfaillou

A thin-film lithium ion battery includes a negative electrode layer, a positive electrode layer, an electrolyte layer disposed between the positive and negative electrode layers, and a lithium layer with lithium pillars extending therefrom formed in the negative electrode layer adjoining the electrolyte layer.

Putting into service of a lithium ion battery

The disclosure concerns a lithium battery comprising, in order, a support, a copper electrode and, in contact with the copper electrode, a layer of a material capable of forming an alloy with lithium. The disclosure further concerns a manufacturing method and a method of putting into service such a battery.

Thin-film battery

An assembly of batteries includes a first battery and a second battery electrically connected in parallel. The first battery is configured to deliver a battery capacity in a first power supply voltage range. The second battery is configured to deliver a battery capacity in a second voltage range. An upper limit of the second voltage range is set between upper and lower limits of the first voltage range. In an operating system, if supplied battery power falls below a threshold, the parallel connected first and second batteries are disconnected from the load.

Protection of a battery against an extended chargeless period

A method of preparing an amorphous film of lithiated metal sulfide or oxysulfide of formula LiM(OS)using a lithiated target material:

Method for preparing an amorphous film made from lithiated metal sulfide or oxysulfide

Circuits and methods for putting into service a lithium ion battery including a first charging step under a current of at most a few tens of microamperes per square centimeter for a plurality of hours.

A method for forming an integrated lithium-ion type battery, including the successive steps of: forming, on a substrate, a stack of a cathode layer made of a material capable of receiving lithium ions, an electrolyte layer, and an anode layer of the battery; forming a short-circuit between the anode and cathode layers; performing a thermal evaporation of lithium; and opening the short-circuit between the anode and cathode layers.

Growing community of inventors

Luynes, France

Delphine Guy-Bouyssou