[미국특허]
Lithium anodes for electrochemical cells
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-004/04
H01M-004/62
H01M-002/16
H01M-004/134
H01M-004/136
H01M-004/1395
H01M-004/36
H01M-004/38
H01M-004/58
H01M-010/052
H01M-010/056
H01M-010/0525
H01M-006/18
H01M-006/40
H01M-010/0585
H01M-010/42
H01M-004/02
출원번호
US-0717020
(2015-05-20)
등록번호
US-9397342
(2016-07-19)
발명자
/ 주소
Skotheim, Terje A.
Sheehan, Christopher J.
Mikhaylik, Yuriy V.
Affinito, John D.
출원인 / 주소
Sion Power Corporation
대리인 / 주소
Wolf, Greenfield & Sacks, P.C.
인용정보
피인용 횟수 :
8인용 특허 :
83
초록▼
Provided is an anode for use in electrochemical cells, wherein the anode active layer has a first layer comprising lithium metal and a multi-layer structure comprising single ion conducting layers and polymer layers in contact with the first layer comprising lithium metal or in contact with an inter
Provided is an anode for use in electrochemical cells, wherein the anode active layer has a first layer comprising lithium metal and a multi-layer structure comprising single ion conducting layers and polymer layers in contact with the first layer comprising lithium metal or in contact with an intermediate protective layer, such as a temporary protective metal layer, on the surface of the lithium-containing first layer. Another aspect of the invention provides an anode active layer formed by the in-situ deposition of lithium vapor and a reactive gas. The anodes of the current invention are particularly useful in electrochemical cells comprising sulfur-containing cathode active materials, such as elemental sulfur.
대표청구항▼
1. An electrochemical cell, comprising: a cathode;an anode comprising an electroactive layer comprising lithium as an electroactive species;a liquid electrolyte; andan intermediary structure positioned between the anode and the cathode, the intermediary structure comprising a lithium-containing, lit
1. An electrochemical cell, comprising: a cathode;an anode comprising an electroactive layer comprising lithium as an electroactive species;a liquid electrolyte; andan intermediary structure positioned between the anode and the cathode, the intermediary structure comprising a lithium-containing, lithium-ion conductive inorganic material that allows passage of lithium ions and at least one polymer which form a composite, wherein the intermediary structure protects the anode from a species in the liquid electrolyte. 2. An electrochemical cell, comprising: a cathode; anda liquid electrolyte;an anode comprising:lithium as an electroactive species, anda protective layer structure comprising at least one lithium-containing, lithium-ion conductive inorganic material that allows passage of lithium ions and at least one polymer which form a composite layer, wherein the protective layer protects the anode from a species in the liquid electrolyte. 3. An electrochemical cell, comprising: a cathode;a liquid electrolyte;an anode comprising an electroactive layer comprising lithium as an electroactive species; andan intermediary structure positioned between the anode and the cathode, the intermediary structure comprising at least one protective layer comprising a lithium-containing, porous, lithium-ion conductive inorganic material that allows passage of lithium ions; andat least one polymer. 4. An electrochemical cell as in claim 1, wherein the intermediary structure is substantially impermeable to liquids. 5. An electrochemical cell as in claim 1, wherein the intermediary structure includes holes that are filled with the polymer. 6. An electrochemical cell as in claim 1, wherein the lithium-ion conductive inorganic material has a lithium ion conductivity greater than 10−7 ohm−1 cm−1. 7. An electrochemical cell as in claim 1, wherein the anode is formed at least in part by condensing lithium vapor onto a substrate in presence of a gaseous material to co-deposit a lithium anode active layer. 8. An electrochemical cell as in claim 7, wherein the gaseous material is selected from one or more of the group consisting of carbon dioxide, acetylene, nitrogen, ethylene, sulfur dioxide, hydrocarbons, alkyl phosphate esters, alkyl sulfite esters, and alkyl sulfate esters. 9. An electrochemical cell as in claim 8, wherein the gaseous material is carbon dioxide. 10. An electrochemical cell as in claim 1, wherein the cathode comprises sulfur as an active cathode species. 11. An electrochemical cell as in claim 1, wherein the intermediary structure comprises a polymer layer comprising the at least one polymer, and wherein the lithium-ion conductive inorganic material is in the form of a layer positioned between the electroactive layer and the polymer layer. 12. An electrochemical cell as in claim 11, wherein the layer comprising the lithium-ion conductive inorganic material comprises pores, and the polymer fills at least a portion of the pores of the layer. 13. An electrochemical cell as in claim 12, wherein the polymer is deposited onto the lithium-ion conductive inorganic material layer by a flash evaporation process. 14. An electrochemical cell as in claim 1, wherein the lithium-ion conductive inorganic material comprises a ceramic conductive to lithium ions. 15. An electrochemical cell as in claim 1, wherein the intermediary structure comprises a multilayer comprising alternating lithium-ion conductive inorganic material layer(s) and polymer layer(s). 16. An electrochemical cell as in claim 1, wherein the electroactive layer has a thickness between 5-50 microns. 17. An electrochemical cell as in claim 1, comprising a polymer gel positioned between the anode and the cathode. 18. An electrochemical cell as in claim 1, wherein the lithium-ion conductive material comprises lithium nitride or lithium oxide. 19. An electrochemical cell as in claim 1, wherein the electroactive layer has a thickness between 5 microns-50 microns,wherein the intermediary structure comprises a layer comprising the lithium-ion conductive inorganic material and having a thickness between 10 nm-2000 nm, andwherein the intermediary structure comprises a polymer layer positioned between the layer comprising the lithium-ion conductive inorganic material and the cathode. 20. An electrochemical cell as in claim 1, wherein the lithium-containing, lithium-ion conductive inorganic material comprises a metal sulfide.
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