Stable electrolyte for lithium air battery and lithium air battery including the same
AssigneesSamsung Electronics Co., Ltd., Massachusetts Institute of Technology
InventorsSang Bok Ma, Mariya Khiterer, Young-Gyoon Ryu, Paula T. Hammond, Yang Shao-Horn, Chibueze Vincent Amanchukwu
Life of this patent
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Abstract
Provided are electrochemical cells that include a compound having the general formula wherein R1 is moiety associated with a lithium ion, X1 and X3 are unsubstituted methylene moieties, X2 and X4 are each independently selected from a substituted or unsubstituted methylene moiety, X is a substituted or unsubstituted C1-C10 alkylene moiety, arylene moiety or heteroarylene moiety, R2 is selected from Li, H, an alkyl moiety, or a heteroalkyl moiety, 0<m≤1, 0≤n≤1, and m+n=1.
Claims25
An electrochemical cell, comprising:
- a cell container, containing therein
- a negative electrode,
- a positive electrode, and
- an electrolyte in electrochemical contact with negative and positive electrodes;
- and
- a compound having the formula
- wherein
- R1 has a formula selected from
- and further wherein
- X1 and X3 are each an unsubstituted methylene moiety,
- X2 and X4 are each independently selected from a substituted or unsubstituted methylene moiety,
- X is a substituted or unsubstituted C1-C10 alkylene moiety, arylene moiety or heteroarylene moiety,
- Pf is a substituted or unsubstituted C1-C10 alkyl moiety,
- R2 is selected from Li, H, an alkyl moiety, or a heteroalkyl moiety,
- 0<m≤1, 0≤n≤1, and m+n=1, and
- the compound has an average molecular weight of about 1000 g/mol to about 1,000,000 g/mol.
An alkali metal/air cell that includes a compound having the formula
- wherein
- R1 has a formula selected from
- and further wherein
- X1 and X3 are each an unsubstituted methylene moiety,
- X2 and X4 are each independently selected from a substituted or unsubstituted methylene moiety,
- X is a substituted or unsubstituted C1-C10 alkylene moiety, arylene moiety or heteroarylene moiety,
- Pf is a substituted or unsubstituted C1-C10 alkyl moiety,
- R2 is selected from Li, H, an alkyl moiety, or a heteroalkyl moiety,
- 0<m≤1, 0≤n≤1, and m+n=1, and
- the compound has an average molecular weight of about 1000 g/mol to about 1,000,000 g/mol.
A rechargeable cell, comprising:
- an anode for lithium ion insertion and deinsertion;
- a cathode comprising oxygen as a cathode active material;
- and
- a lithium ion conductive electrolyte disposed between the anode and the cathode,
- wherein the electrolyte comprises a compound having the formula
- wherein
- R1 has a formula selected from
- and further wherein
- X1 and X3 are each an unsubstituted methylene moiety,
- X2 and X4 are each independently selected from a substituted or unsubstituted methylene moiety,
- X is a substituted or unsubstituted C1-C10 alkylene moiety, arylene moiety or heteroarylene moiety,
- Pf is a substituted or unsubstituted C1-C10 alkyl moiety,
- R2 is selected from Li, H, an alkyl moiety, or a heteroalkyl moiety,
- 0<m≤1, 0≤n≤1, and m+n=1, and
- the compound has an average molecular weight of about 1000 g/mol to about 1,000,000 g/mol.
Dependencies are inferred from the claim text.