Commissariat a L'energie Atomique Et Aux Energies Alternatives

Jouhaiz Rouchou

Steve Martin

Messaoud Bedjaoui

Sylvain Poulet

Sylvain Nizou

Christophe Secouard

Nicolas Lopez

A thin layer lithium-ion type battery comprising, on a substrate (), a cathode current collector layer () and an active portion constituted by a stack of a cathode layer () made of material suitable for inserting lithium ions, an electrolyte layer (), and an anode layer (), wherein the cathode layer presents, across its thickness, porosity that varies between its interface with the cathode current collector layer and its interface with the electrolyte layer, the variation in the porosity being non-zero so as to improve cohesion at both interfaces.

Battery of lithium-ion type with a cathode of varying porosity, and a corresponding method

A method for the production of a battery includes at least production, against a substrate made of a material able to form an electrode, of at least one solid electrolyte layer, production of a first electrode in contact with the electrolyte, and thinning the substrate such that at least a remaining proportion of the substrate, in contact with the solid electrolyte layer, forms a second electrode.

Method for the production of an all-solid battery

Growing community of inventors

Saint Egreve, France

Jouhaiz Rouchou