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

Jean-Noel Carminati

Daniel Chatroux

Frederic Gaillard

Sebastien Carcouet

Remi Vincent

Rémi Vincent

Mathias Gerard

Laurent Garnier

Ludovic Rouillon

Ramon Naiff Da Fonseca

The invention relates to a method for determining the dimensions of an electrochemical cell allowing a total area of the electrochemical cell to be minimized while maximizing an electrical signal generated by the electrochemical cell in operation, including: a/ determining a first cost function expressing the variation in a first parameter representative of the total area as a function of an adjustment variable representative of an aspect ratio of the active zone; b/ determining a second cost function expressing the variation in a second parameter representative of the generated electrical signal as a function of the adjustment variable; c/ determining a compound cost function from the first and second cost functions and identifying a value of the adjustment variable that optimizes the compound cost function and that therefore conjointly optimizes the first and second cost functions.

Method for determining the dimensions of an electrochemical cell comprising PCB holding plates

A module for an electrochemical battery including plural accumulators electrically connected together by connection elements, a mechanism for electrical connection of the module with an exterior and a continuous envelope made from a dielectric polymer material that covers exterior surfaces of the accumulators, and connection elements that do not cover the mechanism for electrical connection of the module with the exterior. The continuous envelope is made by soaking to ensure coating of the accumulators and of the one or more connecting elements. The plural accumulators are distributed into plural layers, arranged in relation to each other so that one or more passages are made between the accumulators, wherein the continuous envelope covers a surface of the accumulator or accumulators delimitating the passages between the accumulators.

Electrochemical battery module having improved resistance in moist environments and method for producing at least one such module

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Grenoble, France

Jean-Noel Carminati