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US 12,749,703 B2Granted
Systems and methods of reducing or preventing manganese metal formation
AssigneeRivian IP Holdings, LLC
InventorsSoo Kim, Sookyung Jeong, Tae Kyoung Kim, Ki Tae Park
Life of this patent
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Abstract
Provided herein is a battery cell and electrode. The battery cell can include a component. The battery cell can include MxFy disposed in the component, where M is a metal element different from Mn, and 1≤x≤3 and 1≤y≤3. The electrode can include an anode active material. The electrode can include a solid electrolyte interphase on the anode active material. The solid electrolyte interphase can include MxMn(O1-yFy)z, where M is a metal element different from Mn, and x≥1, 0≤y≤1, and z≥3.
Claims14
A method, comprising:
- disposing MxFy in a battery cell, wherein M is a metal element different from Mn, and 1≤x≤3 and 1≤y≤3;
- disposing a Mn-containing cathode in the battery cell, the Mn-containing cathode being a source of manganese ions;
- reacting the manganese ions from the Mn-containing cathode with the MxFy upon cycling of the battery cell;
- reacting the MxFy and MnF2 to form a ternary Mn2+-containing metal fluoride;
- and
- forming a solid electrolyte interphase comprising the ternary Mn2+-containing metal fluoride upon cycling of the battery cell.
3 more elements
A method, comprising:
- disposing MxFy in a battery cell, wherein M is a metal element different from Mn, and 1<x≤3 and 1≤y≤3;
- disposing a Mn-containing cathode in the battery cell, the Mn-containing cathode being a source of manganese ions;
- reacting the manganese ions from the Mn-containing cathode with the MxFy upon cycling of the battery cell;
- and
- forming a ternary metal fluoride by reacting the manganese ions from the Mn-containing cathode with the MxFy, wherein the ternary metal fluoride is one or more selected from K2MnF4, KMnF3, BaMnF4, and NaMnF3.
2 more elements
Dependencies are inferred from the claim text.