Pretreatment compositions and methods for coating a battery electrode
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-004/36
H01M-004/04
C23C-022/34
H01M-004/66
H01M-004/13
H01M-004/505
H01M-004/525
H01M-004/58
출원번호
US-0832074
(2013-03-15)
등록번호
US-9273399
(2016-03-01)
발명자
/ 주소
Hellring, Stuart D.
Daughenbaugh, Randy E.
Rakiewicz, Edward F.
Sylvester, Kevin Thomas
Silvernail, Nathan J.
출원인 / 주소
PPG Industries Ohio, Inc.
대리인 / 주소
Passerin, Esq., Alicia M.
인용정보
피인용 횟수 :
1인용 특허 :
55
초록▼
Disclosed is a cathode of a lithium-ion battery having a conductive substrate, a first layer covering at least a portion of the conductive substrate comprising a pretreatment composition comprising a Group IIIB and/or Group IVB metal, and a second layer covering at least a portion of the conductive
Disclosed is a cathode of a lithium-ion battery having a conductive substrate, a first layer covering at least a portion of the conductive substrate comprising a pretreatment composition comprising a Group IIIB and/or Group IVB metal, and a second layer covering at least a portion of the conductive substrate and first layer, the second layer comprising a coating composition comprising a lithium-containing compound. Also disclosed is method for treating a battery cathode and a battery having the treated cathode.
대표청구항▼
1. A cathode of a lithium-ion battery comprising: a conductive substrate;a film covering at least a portion of the conductive substrate comprising a pretreatment composition comprising a Group IIIB metal, a Group IVB metal, or combinations thereof, wherein the pretreatment composition, upon contact
1. A cathode of a lithium-ion battery comprising: a conductive substrate;a film covering at least a portion of the conductive substrate comprising a pretreatment composition comprising a Group IIIB metal, a Group IVB metal, or combinations thereof, wherein the pretreatment composition, upon contact with the conductive substrate, reacts with and chemically alters the substrate surface and binds to it to form a protective layer; anda second layer covering at least a portion of the film, the second layer comprising a coating composition comprising a lithium-containing compound. 2. The cathode of claim 1, wherein the Group IIIB metal, the Group IVB metal, or combinations thereof, comprises zirconium. 3. The cathode of claim 1, wherein the Group IIIB metal, the Group IVB metal, or combinations thereof, is present in the pretreatment composition in an amount of at least 20 ppm metal. 4. The cathode of claim 1, wherein the pretreatment composition further comprises an electropositive metal present in an amount of at least 2 ppm metal. 5. The cathode of claim 4, wherein the electropositive metal comprises tin, indium, gallium, cobalt, nickel, copper, silver, gold, or a combination thereof. 6. The cathode of claim 1, wherein the pretreatment composition further comprises a free fluoride source present in an amount of at least 2 ppm. 7. The cathode of claim 6, wherein the free fluoride source comprises fluorides or bifluorides of ammonium, phosphonium, Group IA metals, Group IIA metals, Group IIIA metals, or a combination thereof. 8. The cathode of claim 1, wherein the lithium-containing compound comprises lithium nickel cobalt manganese dioxide, lithium iron phosphate, carbon-coated lithium iron phosphate, or a combination thereof. 9. The cathode of claim 1, wherein the lithium-containing compound comprises from 80 to 90 weight percent, based on a total weight of the coating, and wherein the coating composition further comprises a conductive agent comprising from 5 to 10 weight percent and a binder comprising from 5 to 10 weight percent, based on the total weight of the coating. 10. The cathode of claim 1, wherein the cathode has a 180° peel adhesion strength of greater than 1.5 N. 11. The cathode of claim 1, wherein the film has a thickness of 5 to 500 nm. 12. The cathode of claim 1, wherein the cathode comprises aluminum. 13. A battery comprising: a cathode comprising: a conductive substrate;a film covering at least a portion of the conductive substrate comprising a pretreatment composition comprising a Group IIIB metal, a Group IVB metal, or combinations thereof, wherein the pretreatment composition, upon contact with the conductive substrate, reacts with and chemically alters the substrate surface and binds to it to form a protective layer; anda second layer covering at least a portion of the film, the second layer comprising a coating composition comprising a lithium-containing compound;an anode;a separator between the anode and the cathode; andan electrolyte in contact with the anode and the cathode. 14. The battery of claim 13, wherein the Group IIIB metal, the Group IVB metal, or combinations thereof, comprises zirconium. 15. The battery of claim 13, wherein the pretreatment composition further comprises an electropositive metal. 16. The battery of claim 13, wherein the pretreatment composition further comprises a free fluoride source. 17. The battery of claim 13, wherein the lithium-containing compound comprises from 80 to 90 weight percent, based on a total weight of the coating, and wherein the coating composition further comprises a conductive agent comprising from 5 to 10 weight percent and a binder comprising from 5 to 10 weight percent, based on the total weight of the coating. 18. The battery of claim 13, wherein the conductive substrate comprises aluminum. 19. A method for treating a battery cathode, comprising: contacting a conductive substrate of the battery cathode with a pretreatment composition comprising a Group IIIB metal, a Group IVB metal, or combinations thereof, wherein the pretreatment composition, upon contact with the conductive substrate, reacts with and chemically alters the substrate surface and binds to it to form a protective layer; anddepositing a coating composition comprising lithium-containing compounds over at least a portion of the pretreated conductive substrate. 20. The method of claim 19, further comprising contacting the conductive substrate with a fluoride solution prior to contacting the conductive substrate with the pretreatment composition.
Karmaschek Uwe,DEX ; Mady Raschad,DEX, Chromium-free process for the no-rinse treatment of aluminum and its alloys and aqueous bath solutions suitable for this.
Dasgupta Sankar (c/o Electrofuels Manufacturing Co. 21 Hanna Ave. Toronto ; Ont. CAX) Jacobs James K. (c/o Electrofuel Manufacturing Co. Unit 10 ; 21 Hanna Ave. Toronto CAX M6K 1W8), Current collector for lithium ion battery.
Kulfan, Anthony D.; Van Buskirk, Ellor J.; Wilson, Craig A., Photodegradation-resistant electrodepositable coating compositions with improved throw power and processes related thereto.
Hauser Brian T. ; Karabin Richard F. ; Lingenfelter Thor G., Process for applying a lead-free coating to untreated metal substrates via electrodeposition.
Schapira Joseph (Paris FRX) Droniou Patrick (Colombes FRX) Pelletier Patrice (Deuil la Barre FRX) Gagnepain Stphane (Saint Ouen FRX), Process for the treatment of aluminum based substrates for the purpose of anodic oxidation, bath used in said process an.
Ikeda Satoshi (Yamato JPX) Meguro Shigeyuki (Yokohama JPX), Surface treatment chemicals and bath for aluminum or its alloy and surface treatment method.
Ikeda Satoshi (Yamato JPX) Meguro Shigeyuki (Yokohama JPX), Surface treatment chemicals and bath for aluminum or its alloy and surface treatment method.
Ikeda Satoshi,JPX ; Kamimura Masayuki,JPX, Surface treatment composition, surface treatment solution and surface treatment method for aluminum and its alloys.
Guhde Donald J. ; Dorsett Terry E. ; O'Brien Deborah A. ; Gunn Walter H. ; Germano Victor V., Water-reducible coating composition for providing corrosion protection.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.