Lithium-ion secondary battery and power consuming device

A power consuming device, comprising a lithium-ion secondary battery wherein the lithium-ion secondary battery comprises a positive electrode plate, a negative electrode plate, and an electrolyte,

• wherein the negative electrode plate comprises a copper foil and a negative electrode active layer provided on a surface on at least one side of the copper foil, the negative electrode active layer comprising a negative electrode active material which comprises a silicon-based material and a carbon-based material, with the silicon-based material having a mass content percentage of A % based on the total mass of the negative electrode active material, where 2≤A≤50;
• the copper foil comprising a Cr element, in a content of B ppm based on the total mass of the copper foil, where 5≤B≤300;
• and wherein the electrolyte comprises a fluorinated solvent in a mass content percentage of C % based on the total mass of the electrolyte, where 2≤C≤70 and B/C≤50.