Lithium-sulphur (Li—S) battery with high cycle stability and method for operation thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02J-007/00
H01M-010/052
H01M-004/04
H01M-004/134
H01M-004/136
H01M-004/38
H01M-004/62
H01M-004/66
H01M-010/056
H01M-010/44
H01M-002/16
H01M-010/0565
H01M-010/0568
H01M-010/42
출원번호
US-0428346
(2013-09-13)
등록번호
US-9768466
(2017-09-19)
우선권정보
DE-10 2012 018 622 (2012-09-14)
국제출원번호
PCT/EP2013/068977
(2013-09-13)
국제공개번호
WO2014/041108
(2014-03-20)
발명자
/ 주소
Brückner, Jan
Althues, Holger
Kaskel, Stefan
Thieme, Sören
Bauer, Ingolf
출원인 / 주소
Technische Universität Dresden
대리인 / 주소
Faegre Baker Daniels LLP
인용정보
피인용 횟수 :
0인용 특허 :
2
초록▼
A Li—S battery including a cathode and an anode and at least one of a lithium-containing liquid electrolyte, gel electrolyte, and solid electrolyte disposed between the cathode and the anode. The cathode includes at least one of an electrically conductive carbon material, an electrochemically active
A Li—S battery including a cathode and an anode and at least one of a lithium-containing liquid electrolyte, gel electrolyte, and solid electrolyte disposed between the cathode and the anode. The cathode includes at least one of an electrically conductive carbon material, an electrochemically active cathode material that comprises sulphur, and at least partially fibrillar plastic material. The anode includes a conducting substrate which is coated at least in regions with at least one of silicon and tin. A method for operation thereof.
대표청구항▼
1. A Li—S battery, comprising: a cathode comprising at least one of an electrically conductive carbon material, an electrochemically active cathode material that comprises sulphur, and at least partially fibrillar plastic material;an anode comprising a conducting substrate which is coated at least i
1. A Li—S battery, comprising: a cathode comprising at least one of an electrically conductive carbon material, an electrochemically active cathode material that comprises sulphur, and at least partially fibrillar plastic material;an anode comprising a conducting substrate which is coated at least in regions with at least one of silicon and tin; andat least one of a lithium-containing liquid electrolyte, gel electrolyte, and solid electrolyte disposed between the cathode and the anode. 2. The battery according to claim 1, wherein the cathode, relative to the total weight of the cathode, comprises at least one of: at least one of 40-90% by weight, 50-80% by weight, and 60-75% by weight, of electrochemically active cathode material;at least one of 1-55% by weight, 5-35% by weight, and 10-25% by weight, of electrically conductive carbon material; andat least one of 0.5-30% by weight, 1-10% by weight, and 2-5% by weight, of plastic material. 3. The battery according to claim 1, wherein the cathode comprises at least one of: an electrochemically active cathode material comprising at least one of sulphur, a lithium-sulphur compound, and Li2S;as electrically conductive carbon material at least one of porous carbon, carbon black, graphene, graphite, diamond-like carbon (DLC), graphite-like carbon (GLC), carbon fibres, carbon nanotubes, and carbon hollow balls; andas fibrillar plastic material, fibrillar polytetrafluoroethylene. 4. The battery according to claim 3, wherein at least one of: the carbon nanotubes have a diameter in a range of at least one of 0.1 to 100 nm, 1 to 50 nm, and 5 to 25 nm; andthe carbon fibres have a diameter in a range of at least one of 1 to 100 μm, 5 to 50 μm, and 10 to 20 μm. 5. The battery according to claim 1, wherein the cathode is configured as a film having a thickness in a range of at least one of 20-1,000 μm, 50-500 μm, and 80-300 μm, applied on at least one of an electrically conductive substrate, a metal and carbon material. 6. The battery according to claim 1, wherein at least one of the electrochemically active cathode material is applied at least in regions on the surface of the electrically conductive carbon material, and the electrically conductive carbon material is applied on the surface of the active cathode material. 7. The battery according to claim 1, wherein the coating of the anode is at least one of a conformal coating, a PVD coating, a CVD coating, and a PE-CVD coating. 8. The battery according to claim 1, wherein the conducting substrate of the anode is in the form of fibres. 9. The battery according to claim 8, wherein the fibres have a diameter in a range of at least one of 1 to 500 μm, 5 to 50 μm, and 10 to 20 μm. 10. The battery according to claim 1, wherein the coating of the anode has a thickness in the range of at least one of 0.1 to 50 μm, 0.5 to 20 μm, and 0.5 to 2 μm. 11. The battery according to claim 1, wherein the fibrillar, conducting substrate of the anode comprises a material selected from the group consisting of carbon, graphite, graphene, diamond-like carbon (DLC), carbon black, and carbon nanotubes. 12. The battery according to claim 1, wherein the anode comprises at least one of silicon and tin in a total quantity, relative to the total mass of the anode, of at least one of 0.1 to 90% by weight, 20 to 80% by weight, and 40 to 70% by weight. 13. The battery according to claim 1, wherein the anode is lithiated. 14. The battery according to claim 1, wherein the anode has a total thickness in a range of at least one of 10 to 1,000 μm, 20 to 500 μm, and 50 to 120 μm. 15. The battery according to claim 1, wherein the electrolyte is selected from the group consisting of at least one of solutions and suspensions of at least one lithium salt in at least one of a cyclic and a non-cyclic ether, in at least one of solutions and suspensions of at least one of lithium-bis(trifluoromethanesulphonyl)imide (LiTFSI), lithium trifluoromethanesulphonate and lithium nitrate, and in at least one of dimethoxyethane (DME), tetraethylene glycol dimethyl ether (TEGDME) and 1,3-dioxolane (DOL). 16. The battery according to claim 1, wherein at least one separator is disposed between the cathode and the anode, the at least one separator comprising a permeable film made of a thermoplastic material including at least one of PE, PP and PET. 17. The battery according to claim 1, wherein the capacity of the anode is over-dimensioned relative to the capacity of the cathode by at least one of at least 10%, at least 50%, and at least 70%. 18. A method for operating a Li—S battery comprising: a cathode comprising at least one of an electrically conductive carbon material, an electrochemically active cathode material that comprises sulphur, and at least partially fibrillar plastic material;an anode comprising a conducting substrate which is coated at least in regions with at least one of silicon and tin; andat least one of a lithium-containing liquid electrolyte, gel electrolyte, and solid electrolyte disposed between the cathode and the anode, wherein the method comprises at least one of:discharging the battery at most to a residual terminal voltage of at least one of 1.3 to 1.7 V, 1.4 to 1.6 V, and 1.45 to 1.55 V; andcharging the battery up to a maximum terminal voltage of at least one of 2.4 to 2.8 V, 2.5 to 2.7 V, and 2.55 to 2.65 V.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (2)
Mikhaylik,Yuriy V., Electrolytes for lithium sulfur cells.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.