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

Lancey Energy Storage

Commissariat a L'energie Atomique Et Aux Energies

Verkor

Gilles Moreau

Raphael Meyer

Raphaël Meyer

Lionel Picard

Jean-Francois Damlencourt

Jean-François Damlencourt

Yohann Chatillon

Michaël Bouvier

Adrien Lassagne

Antoine Romatier

Lionel Pricard

Pierre Schefler

Benjamin Kosicki

The invention relates to a battery module () comprising a module management system () and at least one battery cell () having a cell voltage. The at least one battery cell () is capable of assuming: —a first operating mode (Mod) in which the battery cell () undergoes discharge, —a second operating mode (Mod) in which the battery cell () does not undergo discharge. The module management system () is configured to decide to place the battery cell () selectively in one of the operating modes (Mod, Mod) depending on the cell voltage. The invention also relates to an energy storage unit () comprising at least two of said battery modules (). Finally, the invention relates to a method for managing such an energy storage unit ().

Energy storage unit comprising a battery module and method for managing such an energy storage unit

A heating appliance of the electric radiator type, including a housing containing a DC operated electrical energy storage device charged by an electrical power supply source outside the appliance, and at least one heating body that can be powered by the electrical power supply source and/or by the electrical energy storage device. The housing also comprises at least one air inlet arranged in a lower part of the housing to allow air to enter the space internally defined by the housing, and at least one air outlet arranged in an upper part of the housing to allow the air to leave the space. The electrical energy storage device is arranged across the air flow that circulates, in the space, from the at least one air inlet to the at least one air outlet, in a location situated, as observed in the direction of circulation of the flow, between the at least one air inlet and the at least one heating body.

Heating appliance with a built-in battery arranged in the incoming fresh air flow

An electrical radiator type heating appliance comprises a case housing a heater member producing a first flow of calories (F) when an input of the heater member is powered by a direct electric voltage. The heating appliance also comprises a voltage converter implanted in the case and comprising an input provided with connection elements for connecting the voltage converter to an electric power supply source and an output delivering a direct electric voltage adapted to directly or indirectly power the input of the heater member.

Electrical radiator type heating appliance including a voltage converter

Electrolyte for a lithium-ion battery comprising at least one block copolymer, characterized in that said block copolymer comprises at least one polymeric segment A which is soluble in said electrolyte and at least one polymeric segment B having a temperature for dissolution 'T' in said electrolyte, the polymeric segments A and B being present in amounts sufficient to make possible an increase in the viscosity of the electrolyte, preferably up to gelling of the electrolyte, at a temperature greater than or equal to the temperature 'T'; the ionic conduction is produced by a solvent comprising the copolymer and lithium salts.

Electrolyte additive for lithium-ion battery

A bipolar battery having at least two electrochemical cells stacked one on top of the other, the bipolar collector including, at the periphery of same, on one of the faces of same, at least one first sealing device including one frame made from an electrically insulating and thermosensitive material, and two adhesive frames arranged individually to either side of the thermosensitive frame, the first or the second adjacent collector also including, at the periphery of same, on the covered face of same, at least one second sealing device including a frame made from an electrically insulating and thermosensitive material, and two adhesive frames arranged individually to either side of the thermosensitive frame, the first and second devices each forming a peripheral wall sealed to the electrolyte of the first or second cell, which surrounds same. Each sealed wall is obtained by heat-sealing at least one first and at least one second sealing device on the face of a current collector not provided with a sealing device.

Bipolar Li-ion battery having improved sealing and associated method of production

The invention relates to the use of a liquid/solid reversible phase change electrolyte to prepare a bipolar lithium-ion battery. Said use is characterized in that said electrolyte contains at least one block copolymer containing at least one polymer segment A, soluble in said electrolyte, and at least one polymer segment B, having a temperature T for solubilization in said electrolyte. The polymer segments A and B are present in sufficient amounts to allow physical gelling of the electrolyte at a temperature greater than or equal to the temperature T.

Copolymer for bipolar battery

The present invention relates to a bipolar battery with at least two electrochemical cells stacked one above the other, each collector comprising at its periphery at least one bead of an electrical insulating material also constituting a peripheral zone of the electrolyte-leaktight wall. According to the invention, each leaktight wall is constituted of at least one bead consisting of a honeycomb matrix, the matrix being covered, on each of its two main faces, with a layer or leaf made of heat-sealing and electrically insulating material, each layer or leaf being heat-sealed to one of the current collectors, the heat-sealing and electrically insulating material filling at least partly the cells of the honeycomb while interconnecting the two layers or leafs.

Growing community of inventors

Grenoble, France

Gilles Moreau