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US 9,287,580 B2Granted
Battery with auxiliary electrode
AssigneeMedtronic, Inc.
InventorGaurav Jain
Life of this patent
Estimating the term…
Abstract
A lithium-ion battery includes a case, an electrolyte, a positive electrode, a negative electrode, and an auxiliary electrode. The positive electrode includes a current collector and an active material. The negative electrode includes a current collector and an active material. The auxiliary electrode includes an active material. The electrolyte, positive electrode, and negative electrode are disposed within the case. The auxiliary electrode is configured to selectively couple to the negative electrode to irreversibly absorb lithium from the negative electrode.
Claims18
A lithium-ion battery comprising:
- a case;
- an electrolyte;
- a positive electrode including a current collector and an active material;
- a negative electrode including a current collector and an active material;
- and
- an auxiliary electrode including an active material selected from the group consisting of silver vanadium oxide, carbon monofluoride, and manganese dioxide;
- wherein the electrolyte, positive electrode, negative electrode, and auxiliary electrode are disposed within the case;
- and
- wherein the auxiliary electrode is configured to selectively couple to the negative electrode to irreversibly absorb lithium from the negative electrode.
6 more elements
A lithium-ion battery comprising:
- a positive electrode;
- a negative electrode;
- and
- an auxiliary electrode comprising an auxiliary active material selected from the group consisting of silver vanadium oxide, carbon monofluoride, and manganese dioxide, the auxiliary electrode being configured to irreversibly absorb lithium from the negative electrode when the auxiliary electrode is selectively coupled to the negative electrode, and the auxiliary active material being an irreversible material;
- whereby the auxiliary electrode is configured to lessen the amount of lithium that can be released from the negative electrode during operation of the battery.
2 more elements
Dependencies are inferred from the claim text.