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

Renault S.a.s.

Grégory Si Larbi

Sébastien Patoux

Céline Barchasz

Lise Daniel

Viet-Phong Phan

A process forms a Li-ion battery cell including an LNMO-based cathode material, an anode material, a separator and an electrolyte. The process successively includes charging the cell until the cell reaches a state of charge of 100%, storing the cell in the state of charge of 100% in an open circuit for a period of time of at least 48 hours, and removing gas generated during the charging and the storage.

Method for forming a Li-ion battery cell comprising an LNMO cathode material

The invention relates to a lithium/sulphur accumulator including at least one unit cell including: a negative electrode; an electrode separator comprising a material soaked with electrolyte, said material comprising at least one nonwoven and having a porosity in the range from 50 to 96%, and a thickness in the range from 50 to 200 micrometers; a positive electrode; and wherein said electrolyte is introduced by an excess quantity, and comprises at least one lithium salt, and the excess quantity of electrolyte amounting to from 20 to 200% of the quantity of electrolyte ensuring the wetting of the electrodes and of the separator.

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Sillans, France

Grégory Si Larbi