| 摘要 |
An electrochemical battery cell having a negative electrode, such as a negative electrode, including lithium, that is provided with a fuel gauge or end of life indicator capable of generating a voltage step preferably indicating that the cell is close to the end of its life and should be replaced, wherein the voltage step is detectable by a device associated with the cell. Additional capacity is added to the cell by utilizing a current collector comprising a consumable electrochemically active material having a lower potential than the electrochemically active material of the associated electrode, such as lithium, and a discharge voltage above a predetermined cut-off voltage.
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