17-10-2013 дата публикации
Номер: US20130273441A1
Принадлежит:
Lithium-air cells employing poly(ethyleneoxide) phosphate-based electrolytes may be prepared and exhibit improved charge carrying capacity. Such PEO phosphates generally have the formulas IIa, IIb, IIc, where: 3. The lithium-air cell of claim 1 , wherein at least one of Ror Ris a group of Formula IIa claim 1 , IIb claim 1 , IIc claim 1 , or IId.4. The lithium-air cell of claim 1 , further comprising a siloxanyl carbonate co-solvent.5. The lithium-air cell of claim 4 , wherein the co-solvent is 1-[1-trimethylsiloxanyl-ethyl]ethylene carbonate.6. The lithium-air cell of claim 1 , wherein the electrolyte is not a gelled electrolyte.7. The lithium-air cell of claim 1 , wherein the poly(ethyleneoxide) solvent is present from about 5 wt % to about 95 wt % claim 1 , wherein the wt % is calculated on the total weight of the poly(ethyleneoxide) solvent claim 1 , the salt claim 1 , and the electrode stabilizing additive.8. The lithium-air cell of claim 1 , wherein the lithium salt is electrochemically and chemically stable in the presence of oxygen.9. The lithium-air cell of claim 1 , wherein:{'sub': 3', '2', '2', '5', '2', '4', '4', '6', '6', '2', '2', '4', '2', '4', '2', '4', '3', '3', '3', '2', '2', '3', '2', '3', '2', '2', '5', '2', '2', '4', '2', '2', '2', '4', '2', '12', '12-p', 'p', '2', '10', '10-y', 'y, 'the lithium salt is selected from the group consisting of LiCFCO, LiCFCO, LiClO, LiBF, LiAsF, LiPF, LiPF(CO), LiPFCO, LiCFSO, LiN(CFSO), LiC(CFSO), LiN(SOCF)), lithium alkyl fluorophosphates, Li(CO), LiBFCO, LiBXH, LiBXH, and mixtures of any two or more thereof;'}X is selected from the group consisting of OH, F, Cl, and Br;p=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12; andy=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10.10. The lithium-air cell of claim 1 , wherein the concentration of the lithium salt is from about 0.01 M to about 2.0 M.11. The lithium-air cell of further comprising an electrode stabilizing additive that can be oxidized or polymerized on the surface of a ...
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