Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Blue Solutions

Centre National De La Recherche Scientifique

Université D'orleans

Universite De Tours

Philippe Azais

Lionel Picard

Olivier Caumont

Matthieu Picot

Erwan Vigneras

Jean-Michel Depond

Guillaume Turin

Eric Mayousse

Encarnacion Raymundo-Pinero

Valery Cervantes

Yves Berthe De Pommery

Francois Beguin

Benoît Chavillon

Johann Lejosne

Daniel Lemordant

Meriem Anouti

Celine Moueza-Decaux

Grzegorz Lota

Celine Decaux-Moueza

Fabien Perdu

Marie-Eve Yvenat

A negative electrode for a lithium electrochemical generator, wherein it comprises, as active material, a lithium and calcium alloy, wherein the calcium is present in the alloy to the extent of 2% to 34% of atomic.

Specific negative electrode based on lithium and lithium electrochemical generator comprising such a negative electrode

The main purpose of the invention is an assembly and electrical connection part () of at least two electrical energy storage cells (), that will be included in an electric assembly module () of an energy storage system, characterised in that the part () comprises first () and second () means of connecting the part () to said at least two electrical energy storage cells (), the first () and second () connection means being configured to enable the passage of connection pins () to assemble and electrically connect the part () to each of said at least two electrical energy storage cells ().

Assembly and electrical connection part for at least two electrical energy storage cells

The invention primarily relates to a cell () for storing power, which is to be integrated in an electrical module for assembling a power storage system, having a first surface () and a second surface (), characterised in that the cell () comprises at least one male element () on one of the first () and second () surfaces thereof, and at least one female element () on the other of the first () and second () surfaces thereof, which elements are shaped such as to be fitted into one another such that the cell () is configured such as to be assembled to another cell () of the same type, in that at least one male element () comprises at least one electrical connection interface having positive polarity () and in that at least one female element () comprises at least one electrical connection interface having negative polarity (), or conversely such that the cell () is configured such as to be electrically connected to another cell () of the same type.

Cell for storing power, comprising at least one male element and one female element equipped with electrical connection interfaces

A process for manufacturing an elementary gas electrode electrochemical cell of metal-gas type, configured to be integrated into an electrochemical assembly module of a system for storing energy and including: an electrochemical core including at least one negative electrode and at least one positive electrode, at least one negative electrode as a gas electrode and at least one positive electrode as a metal electrode or vice versa, the process including: producing the electrochemical core of the cell by winding, folding, and/or stacking a plurality of layers including at least one negative-electrode layer, one positive-electrode layer, and one electrolyte layer, and forming gas flow spaces channeling the gas to the one or more gas electrode layers.

Process for manufacturing an elementary gas-electrode electrochemical cell of the metal-gas type and associated cell

A process is provided for manufacturing an alkaline-based hybrid supercapacitor type battery, to an alkaline-based hybrid supercapacitor type battery, and to a process for recycling a negative electrode of an alkali-ion battery. The process for manufacturing the alkaline-based hybrid supercapacitor type battery comprises forming a negative electrode A from an electrode material B originating from a used alkali-ion battery having lost at least some of its initial capacity. Embodiments of the present disclosure are in particular applicable to the field of batteries.

Process for manufacturing an alkaline-based hybrid supercapacitor type battery, battery obtained by this process and process for recycling an anode material of an alkali-ion battery

An electrochemical assembly module of a system for storing energy, including an assembly of a plurality of elementary gas-electrode electrochemical cells, the assembly including a plurality of lugs respectively associated with the plurality of elementary electrochemical cells, the lugs being connected together by a connecting holder and receiving terminals of the elementary electrochemical cells so that the terminals are all electrically connected to one another by the connecting holder, and a plurality of elements forming connecting clips each receiving at least two terminals of at least two elementary electrochemical cells so that the at least two terminals are electrically connected to each other by the element forming a connecting clip that is associated therewith.

Assembly module comprising electrochemical cells received by lugs and connecting clips

The invention relates to a device of the hybrid supercapacitor type comprising at least one cell comprising:

Electrochemical supercapacitor device made from an electrolyte comprising, as a conductive salt, at least one salt made from an alkali element other than lithium

The invention relates to an electrical energy storage assembly comprising an envelope and a capacitive element () contained in the envelope, said envelope comprising: at least one side wall (); and two bottom walls () each located at an end of the side wall. Said storage assembly comprises at least one electroconductive intermediate connection part () to be arranged between the capacitive element and a bottom wall (), in addition to a covering plate () for covering the end of the capacitive element (), said covering plate () including at least one vent () for the passage of a fluid. The covering plate () is fixed to the capacitive element in such a way as to be in electrical contact therewith, and the intermediate connection part () is also fixed to the envelope in certain areas enabling a deformation of the bottom wall in relation to the intermediate connection part.

Long-term energy storage assembly comprising an intermediate connection part

A method is provided for developing a hybrid supercapacitor. The method includes the use of a lithium salt of the electrolyte to carry out the intercalation/insertion of the lithium at the negative electrode but by greatly increasing the concentration of lithium ions of the electrolyte order to subsequently accept a depletion. As the depletion in ions has an impact on the conductivity, the amount and the concentration of the electrolyte are chosen in order to make it possible to accept this depletion white retaining a conductivity of the electrolyte compatible with a powerful system for storage of energy. A portion of the Liions present in the electrolyte is used to form the passivation layer and the compound for intercalation/insertion LiCat the negative electrode.

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Saint Egreve, France

Philippe Azais