Lithium metal electrodes and batteries thereof
AssigneesMassachusetts Institute of Technology, Carnegie Mellon University, 24M Technologies, Inc.
InventorsYet-Ming Chiang, Venkatasubramanian Viswanathan, Linsen Li, Vikram Pande, Dilip Krishnamurthy, Zeeshan Ahmad, William Henry Woodford
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Abstract
The present disclosure is generally related to separators for use in lithium metal batteries, and associated systems and products. Certain embodiments are related to separators that form or are repaired when an electrode is held at a voltage. In some embodiments, an electrochemical cell may comprise an electrolyte that comprises a precursor for the separator.
Claims54
A rechargeable electrochemical cell, comprising:
- a first electrode;
- a second electrode;
- a separator;
- and
- an electrolyte, wherein the electrolyte comprises a salt with a concentration of greater than or equal to 0.01 M, the electrolyte having a portion of a precursor to form the separator, wherein the precursor for the separator is present in the electrolyte at a concentration of greater than or equal to 1 nM and less than or equal to 1 mM;
- and
- wherein the precursor reacts to repair one or more defects in the separator when the first and the second electrodes reach a specific voltage between 0 V and 5 V.
The rechargeable electrochemical cell of 1, wherein the precursor for the separator comprises a species that can react to form a halide anion.
Dependencies are inferred from the claim text.