Method for Determining When a Li-Ion Cell Comprising a Negative Electrode Made of an Alloy is Fully Charged, Associated Cell and Battery
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsYvan Reynier, Willy Porcher
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Abstract
The invention relates to a method for determining the end-of-charging condition of a lithium-ion accumulator with a negative electrode formed with at least one alloy, according to which a surface pressure with a determined force from the external portion of the accumulator (A) against an element (2, 2′, 3) is detected, the surface pressure being generated by the thickness increase due to ion insertion at the negative electrode and thereby defining the end-of-charging condition.
Claims12
1-11. (canceled)
A method for determining the end-of-charging condition of a lithium-ion accumulator with a negative electrode formed with at least one alloy, according to which surface pressures with determined forces between the external surfaces of the facing accumulators, said surface pressures being generated by the thickness increase of at least one accumulator, due to ion insertion at its negative electrode and thereby defining the end-of-charging condition.
Dependencies are inferred from the claim text.