Commissariat a L'energie Atomique Et Aux Energies Alternatives

Delta Concept

Gabriel Delepierre

Philippe Coronel

Messaoud Bedjaoui

Sylvain Poulet

Gilbert Pitone

Sébastien Quenard

A method of vertically assembling encapsulated single microbatteries, wherein the vertical assembly contains, between the microbatteries, an electrical insulation and/or sealing layer and a metal layer, successively including: a step of stacking and attaching at least two single microbatteries, previously encapsulated, stacked on each other; and forming a metal layer, capable of ensuring the electrical coupling of each of the metal layers of each of the encapsulated single microbatteries. Each of the at least two encapsulated single microbatteries is previously prepared by: forming at least one electrical insulation and/or sealing layer over at least a portion of the lateral sides and of the surface including the current collectors of a microbattery including positive and negative electrodes, an electrolyte, and positive and negative current collectors; making the current collectors of the microbattery accessible; and forming a metal layer extending from the current collectors to the lateral sides of said microbattery.

Method for assembling and encapsulating lithium microbatteries and microbatteries produced thereby

An electric battery including a microbattery provided with first and second current collectors and an encapsulation device including an electrically-conductive and sealing layer formed by a matrix made of polymer material including electrically-conductive particles. First and second connection pads made of electrically-conductive material are respectively electrically connected to the first and second current collectors of the microbattery. The encapsulation device also includes an additional microbattery provided with first and second current collectors, arranged opposite to and separate from the microbattery by the sealing layer. The first and/or second current collectors of the additional microbattery are electrically connected, respectively, to the first and/or second connection pads via at least a portion of the electrically-conductive particles.

Electric battery and means for encapsulating same

Growing community of inventors

Fontaine, France

Gabriel Delepierre