Lithium cobalt oxides and methods of making same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01B-001/08
H01M-004/52
H01M-006/14
출원번호
US-0731949
(2000-12-07)
발명자
/ 주소
Gao, Yuan
Yakovleva, Marina
Burba, III, John L.
Engel, John F.
출원인 / 주소
FMC Corporation
대리인 / 주소
Myers Bigel Sibley & Sajovec, P.A.
인용정보
피인용 횟수 :
17인용 특허 :
64
초록▼
The present invention includes lithium cobalt oxides having hexagonal layered crystal structures and methods of making same. The lithium cobalt oxides of the invention have the formula LiwCo1-xAxO2+ywherein 0.96≤w≤1.05, 0≤x≤0.05, -0.02≤y≤0.02 and A is one or more dopants. The lithium cobalt oxides o
The present invention includes lithium cobalt oxides having hexagonal layered crystal structures and methods of making same. The lithium cobalt oxides of the invention have the formula LiwCo1-xAxO2+ywherein 0.96≤w≤1.05, 0≤x≤0.05, -0.02≤y≤0.02 and A is one or more dopants. The lithium cobalt oxides of the invention preferably have a position within the principal component space defined by the relationship axi+byi≤c,wherein xi=Si.circle-solid.Pc1; yi=Si.circle-solid.Pc2; the vector Siis the x-ray spectrum for the LiwCo1-xAxO2+ycompound; the vectors Pc1and Pc2defining the principal component space are determined by measuring the x-ray powder diffraction values Sibetween 15° and 120° using a 0.02° step size and CuKα rays for a large sample set of lithium cobalt oxides and using the regression of Siof the sample set against the capacity fade after 50 cycles of a lithium coin cell that includes a lithium negative electrode and the lithium cobalt oxide as the positive electrode material and that is cycled between 3.0 and 4.3V at a constant current of C/3 during both charge and discharge cycles; and the values a, b and c are determined by using only the xiand yivalues for LiwCo1-xAxO2+ycompounds in the sample set that have a capacity fade after 50 cycles of less than or equal to 15%.
대표청구항▼
The present invention includes lithium cobalt oxides having hexagonal layered crystal structures and methods of making same. The lithium cobalt oxides of the invention have the formula LiwCo1-xAxO2+ywherein 0.96≤w≤1.05, 0≤x≤0.05, -0.02≤y≤0.02 and A is one or more dopants. The lithium cobalt oxides o
The present invention includes lithium cobalt oxides having hexagonal layered crystal structures and methods of making same. The lithium cobalt oxides of the invention have the formula LiwCo1-xAxO2+ywherein 0.96≤w≤1.05, 0≤x≤0.05, -0.02≤y≤0.02 and A is one or more dopants. The lithium cobalt oxides of the invention preferably have a position within the principal component space defined by the relationship axi+byi≤c,wherein xi=Si.circle-solid.Pc1; yi=Si.circle-solid.Pc2; the vector Siis the x-ray spectrum for the LiwCo1-xAxO2+ycompound; the vectors Pc1and Pc2defining the principal component space are determined by measuring the x-ray powder diffraction values Sibetween 15° and 120° using a 0.02° step size and CuKα rays for a large sample set of lithium cobalt oxides and using the regression of Siof the sample set against the capacity fade after 50 cycles of a lithium coin cell that includes a lithium negative electrode and the lithium cobalt oxide as the positive electrode material and that is cycled between 3.0 and 4.3V at a constant current of C/3 during both charge and discharge cycles; and the values a, b and c are determined by using only the xiand yivalues for LiwCo1-xAxO2+ycompounds in the sample set that have a capacity fade after 50 cycles of less than or equal to 15%. 82, 19871100, Andresen et al., 204/299; US-4728392, 19880300, Miura et al., 156/644; US-4842701, 19890600, Smith et al., 204/180.1; US-4879097, 19891100, Whitehead et al., 422/067; US-4891120, 19900100, Sethi et al., 204/299; US-4908112, 19900300, Pace, 204/299; US-4983038, 19910100, Ohki et al., 356/246; US-4999493, 19910300, Allen et al., 250/288; US-5015845, 19910500, Allen et al., 250/288; US-5110745, 19920500, Kricka et al., 436/087; US-5126022, 19920600, Soane et al., 204/180.1; US-5132012, 19920700, Miura et al., 210/198.2; US-5162650, 19921100, Bier, 250/288; US-5180480, 19930100, Manz, 204/299; US-5182366, 19930100, Huebner et al., 530/334; US-5245185, 19930900, Busch et al., 250/288; US-5269900, 19931200, Jorgenson et al., 204/299; US-5283036, 19940200, Hofmann et al., 422/070; US-5294426, 19940300, Sekine et al., 423/335; US-5296114, 19940300, Manz, 204/180.1; US-5296375, 19940300, Kricka et al., 435/291; US-5302533, 19940400, Kricka, 436/537; US-5304487, 19940400, Wilding et al., 435/291; US-5306621, 19940400, Kricka, 435/007.91; US-5316680, 19940500, Frechet et al., 210/635; US-5328578, 19940700, Gordon, 204/180.1; US-5331159, 19940700, Apffel, Jr. et al., 250/288; US-5332481, 19940700, Guttman, 204/182.8; US-5334310, 19940800, Frechet et al., 210/198.2; US-5338427, 19940800, Shartle et al., 204/299; US-5349186, 19940900, Ikonomou et al., 250/288; US-5374834, 19941200, Geis et al., 257/239; US-5376252, 19941200, Ekstrom et al., 204/299; US-5387329, 19950200, Foos et al., 204/415; US-5401376, 19950300, Foos et al., 204/415; US-5401963, 19950300, Sittler, 250/288; US-5415841, 19950500, Dovichi et al., 422/068.1; US-5421980, 19950600, Guttman, 204/299; US-5423964, 19950600, Smith et al., 204/180; US-5427946, 19950600, Kricka et al., 435/291; US-5429734, 19950700, Gajar et al., 204/299; US-5431807, 19950700, Frechet et al., 210/198.2; US-5445324, 19950800, Berry et al., 239/099; US-5453185, 19950900, Frechet et al., 210/198.2; US-5481110, 19960100, Krishnaswamy et al., 250/288; US-5486335, 19960100, Wilding et al., 422/055; US-5493115, 19960200, Deinzer et al., 250/281; US-5495108, 19960200, Apffel, Jr. et al., 250/288; US-5498392, 19960300, Wilding et al., 422/068.1; US-5501883, 19960300, Ishikawa et al., 428/001; US-5501893, 19960300, Laermer et al., 428/161; US-5512131, 19960400, Kumar et al., 156/655.1; US-5512451, 19960400, Kricka, 435/028; US-5523566, 19960600, Fuerstenau et al., 250/282; US-5536939, 19960700, Freidhoff et al., 250/281; US-5541408, 19960700, Sittler, 250/288; US-5563639, 19961000, Cameron et al., 347/034; US-5572023, 19961100, Caprioli, 250/288; US-5608217, 19970300, Franzen et al., 250/288; US-5640010, 19970600, Twerenbold, 250/281; US-5641400, 19970600, Kaltenbach et al., 210/198.2; US-5644131, 19970700, Hansen, 250/292; US-5647979, 19970700, Liao et al., 210/198.2; US-5652427, 19970700, Whitehouse et al., 250/288; US-5705813, 19980100, Apffel et al., 250/288; US-5716825, 19980200, Hancock et al., 435/286.5; US-5747815, 19980500, Young et al., 250/423; US-5750988, 19980500, Apffel et al., 250/288; US-5789746, 19980800, Kato et al., 250/288; US-5800692, 19980900, Naylor et al., 204/601; US-5804022, 19980900, Kaltenbach et al.
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