[미국특허]
Lithium sulfur electrochemical cell including insoluble nitrogen-containing compound and battery including the cell
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-004/38
H01M-004/58
H01M-004/62
H01M-010/052
H01M-010/0525
H01M-010/0567
H01M-010/42
H01M-004/134
H01M-004/136
출원번호
US-0286731
(2014-05-23)
등록번호
US-9847550
(2017-12-19)
발명자
/ 주소
Scordilis-Kelley, Chariclea
Kubicki, Joseph
Cao, Shuguang
Mikhaylik, Yuriy V.
출원인 / 주소
Sion Power Corporation
대리인 / 주소
Snell & Wilmer L.L.P.
인용정보
피인용 횟수 :
1인용 특허 :
97
초록▼
An electrochemical cell including at least one nitrogen-containing compound is disclosed. The at least one nitrogen-containing compound may form part of or be included in: an anode structure, a cathode structure, an electrolyte and/or a separator of the electrochemical cell. Also disclosed is a batt
An electrochemical cell including at least one nitrogen-containing compound is disclosed. The at least one nitrogen-containing compound may form part of or be included in: an anode structure, a cathode structure, an electrolyte and/or a separator of the electrochemical cell. Also disclosed is a battery including the electrochemical cell.
대표청구항▼
1. An electrochemical cell, comprising: a cathode comprising an electroactive sulfur containing material;an anode comprising lithium;a separator between the anode and cathode; anda non-aqueous electrolyte comprising about 50 wt % to about 85 wt % of one or more non-aqueous solvents, about 0.2 m (mol
1. An electrochemical cell, comprising: a cathode comprising an electroactive sulfur containing material;an anode comprising lithium;a separator between the anode and cathode; anda non-aqueous electrolyte comprising about 50 wt % to about 85 wt % of one or more non-aqueous solvents, about 0.2 m (moles/kg of solvent) to about 2.0 m of one or more lithium salts, about 1 wt % to about 5 wt % of a substantially insoluble nitrogen-containing material, wherein the solubility of the substantially insoluble nitrogen-containing material in the electrolyte is less than 1%, and about 0.5 wt % to about 7.5 wt % of an additive comprising an N—O compound,wherein the substantially insoluble nitrogen containing material comprises a nitro compound, polydiallyldimethylammonium chloride, polyamide or a nitrate or nitrite in combination with a salt, aromatic hydrocarbon, or ether added to the electrolyte to make the nitrate or nitrite insoluble in the electrolyte, or a compound including an N—O or amine functional group attached to a carbon chain comprising about 8 to about 25 carbon atoms configured to form micelle structures comprising the N—O or amine functional groups. 2. An electrochemical cell, comprising: a cathode comprising an electroactive sulfur containing material;an anode comprising lithium;a substantially insoluble nitrogen-containing compound; anda non-aqueous electrolyte comprising about 50 wt % to about 85 wt % of one or more non-aqueous solvents, about 1 wt % to about 5 wt % of the substantially insoluble nitrogen-containing compound, about 0.2 m (moles/kg of solvent) to about 2.0 m of one or more lithium salts, wherein the solubility of the substantially insoluble nitrogen-containing compound in the non-aqueous electrolyte is less than 1 wt %, and about 0.5 wt % to about 7.5 wt % of an additive comprising an N—O compound,wherein the substantially insoluble nitrogen containing compound comprises a nitro compound, polydiallyldimethylammonium chloride, polyamide or a nitrate or nitrite in combination with a salt, aromatic hydrocarbon, or ether added to the electrolyte to make the nitrate or nitrite insoluble in the electrolyte, or a compound including an N—O or amine functional group attached to a carbon chain comprising about 8 to about 25 carbon atoms configured to form micelle structures comprising the N—O or amine functional groups, andwherein the non-aqueous electrolyte is a liquid or a gel. 3. The electrochemical cell of claim 2, wherein the non-aqueous electrolyte further comprises a compound selected from the group consisting of a potassium salt, a magnesium salt, a calcium salt, a strontium salt, an aluminum salt, an aromatic hydrocarbon, and an ether. 4. A battery comprising: a housing;a positive lead;a negative lead; andone or more electrochemical cells as defined in claim 2. 5. An electrochemical cell, comprising: a cathode comprising an electroactive sulfur containing material;an anode comprising lithium;a separator between the anode and cathode; anda non-aqueous electrolyte comprising about 60 wt % to about 80 wt % of one or more non-aqueous solvents, about 0.2 m (moles/kg of solvent) to about 2.0 m of one or more lithium salts, about 1 wt % to about 10 wt % of a substantially insoluble nitrogen-containing material, wherein the solubility of the substantially insoluble nitrogen-containing material in the electrolyte is less than 1%, and about 1 wt % to about 5 wt % of an additive comprising an N—O compound,wherein the substantially insoluble nitrogen containing material comprises a nitro compound, polydiallyldimethylammonium chloride, polyamide or a nitrate or nitrite in combination with a salt, aromatic hydrocarbon, or ether added to the electrolyte to make the nitrate or nitrite insoluble in the electrolyte, or a compound including an N—O or amine functional group attached to a carbon chain comprising about 8 to about 25 carbon atoms configured to form micelle structures comprising the N—O or amine functional groups, andwherein the N—O compound is selected from the group consisting of inorganic nitrates, organic nitrates, inorganic nitrites, organic nitrites, organic nitro compounds, and compounds with one or more of negatively, neutral and positively charged nitrogen oxide groups. 6. The electrochemical cell of claim 5, wherein the solubility of the substantially insoluble nitrogen-containing material in the non-aqueous electrolyte is less than 0.5 percent. 7. The electrochemical cell of claim 5, wherein the substantially insoluble nitrogen-containing material comprises a functional group selected from the group consisting of N—O and amine. 8. The electrochemical cell of claim 5, wherein the substantially insoluble nitrogen-containing material comprises a polyelectrolyte. 9. The electrochemical cell of claim 5, wherein the substantially insoluble nitrogen-containing material comprises a nitrogen group attached to an insoluble material selected from the group consisting of a cation, a monomer, an oligomer, and a polymer. 10. The electrochemical cell of claim 5, wherein the substantially insoluble nitrogen-containing material comprises a compound selected from the group consisting of polynitrostyrene, nitrocellulose, and octyl nitrate. 11. The electrochemical cell of claim 5, wherein the substantially insoluble nitrogen-containing material comprises a functional group selected from the group consisting of N—O and amine, the functional group attached to a carbon chain comprising about 8 to about 25 carbon atoms to form micelle structures comprising the N—O or amine functional group. 12. The electrochemical cell of claim 5, wherein the substantially insoluble nitrogen-containing material initially forms part of one or more of the anode, the cathode, and the separator. 13. The electrochemical cell of claim 5, wherein the cathode includes the substantially insoluble nitrogen-containing material. 14. The electrochemical cell of claim 5, wherein the cathode comprises a binder comprising the substantially insoluble nitrogen-containing material. 15. The electrochemical cell of claim 5, wherein the anode includes the substantially insoluble nitrogen-containing material. 16. The electrochemical cell of claim 5, wherein the separator includes the substantially insoluble nitrogen-containing material. 17. The electrochemical cell of claim 5, wherein the non-aqueous electrolyte comprises a compound selected from the group consisting of a potassium salt, a magnesium salt, a calcium salt, a strontium salt, an aluminum salt, an aromatic hydrocarbon, and an ether. 18. A battery comprising: a housing;a positive lead;a negative lead; andone or more electrochemical cells as defined in claim 5.
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