-
1.发明授权公开(公告)号：US09385368B2
公开(公告)日：2016-07-05
申请号：US14241304
申请日：2012-08-21
IPC分类号： H01M4/36 , H01M4/04 , H01M4/505 , H01M4/525 , H01M4/131 , H01M4/1391 , H01M10/0525 , C01G53/00
CPC分类号： H01M4/505 , C01G53/50 , C01P2006/40 , H01M4/0471 , H01M4/131 , H01M4/1391 , H01M4/364 , H01M4/366 , H01M4/525 , H01M10/0525 , H01M2004/028 , Y02E60/122 , Y02P70/54
摘要： Positive electrode for lithium-ion electrochemical cells are provided that have capacity retentions of greater than about 95% after 50 charge-discharge cycles when comparing the capacity after cycle 52 with the capacity after cycle 2 when cycled between 2.5 V and 4.7 V vs. Li/Li+ at 30° C. Compositions useful in the provided positive electrodes can have the formula, Li1+x(NiaMnbCoc)1−x O2, wherein 0.05≦x≦0.10, a+b+c=1, 0.6≦b/a≦1.1, c/(a+b)
摘要翻译： 提供了用于锂离子电化学电池的正极，当比较循环52之后的容量与循环2之间的容量在2.5V与4.7V之间的循环时相比，在50次充放电循环之后具有大于约95％的容量保持 / Li +。在所提供的正电极中有用的组合物可以具有式Li 1 + x（NiaMnbCoc）1-x O 2，其中0.05＆nlE; x＆nlE; 0.10，a + b + c = 1，0.6＆ /a≦̸1.1，c /（a + b）<0.25，a，b和c都大于零。 制造这些正电极的过程包括将组合物在850℃烧制至925℃
-
2.发明申请HIGH CAPACITY POSITIVE ELECTRODES FOR USE IN LITHIUM-ION ELECTROCHEMICAL CELLS AND METHODS OF MAKING SAME 有权用于锂离子电化学电池的高容量正电极及其制备方法公开(公告)号：US20140234717A1
公开(公告)日：2014-08-21
申请号：US14241304
申请日：2012-08-21
CPC分类号： H01M4/505 , C01G53/50 , C01P2006/40 , H01M4/0471 , H01M4/131 , H01M4/1391 , H01M4/364 , H01M4/366 , H01M4/525 , H01M10/0525 , H01M2004/028 , Y02E60/122 , Y02P70/54
摘要： Positive electrode for lithium-ion electrochemical cells are provided that have capacity retentions of greater than about 95% after 50 charge-discharge cycles when comparing the capacity after cycle 52 with the capacity after cycle 2 when cycled between 2.5 V and 4.7 V vs. Li/Li+ at 30° C. Compositions useful in the provided positive electrodes can have the formula, Li1+x(NiaMnbCoc)1−x O2, wherein 0.05≦x≦0.10, a+b+c=1, 0.6≦b/a≦1.1, c/(a+b)
摘要翻译： 提供了用于锂离子电化学电池的正极，当比较循环52之后的容量与循环2之间的容量在2.5V与4.7V之间的循环时相比，在50次充放电循环之后具有大于约95％的容量保持 / Li +。在所提供的正电极中有用的组合物可以具有式Li 1 + x（NiaMnbCoc）1-x O 2，其中0.05＆nlE; x＆nlE; 0.10，a + b + c = 1，0.6＆ /a≦̸1.1，c /（a + b）<0.25，a，b和c都大于零。 制造这些正电极的过程包括将组合物在850℃烧制至925℃
-
公开(公告)号：US20110183209A1
公开(公告)日：2011-07-28
申请号：US12694617
申请日：2010-01-27
CPC分类号： H01M10/0525 , H01M4/134 , H01M4/38 , H01M4/386 , H01M4/40 , H01M4/46 , H01M4/505 , H01M4/525 , Y10T29/49108
摘要： A lithium-ion electrochemical cell is provided that has high total energy, high energy density and good performance upon repeated charge-discharge cycles. The cell includes a composite positive electrode that comprises a metal oxide electrode material, a composite negative electrode that comprises a alloy anode active material having a first cycle irreversible capacity of 10 percent or higher and an electrolyte. The first cycle irreversible capacity of the composite positive electrode is within 40 percent of the first cycle irreversible capacity of the composite negative electrode.
摘要翻译： 提供了一种锂离子电化学电池，其具有高的总能量，高能量密度和重复的充放电循环时的良好性能。 电池包括包含金属氧化物电极材料的复合正极，包含第一循环不可逆容量为10％以上的合金负极活性材料的复合负极和电解质。 复合正极的第一次循环不可逆容量在复合负极的第一次循环不可逆容量的40％以内。
-
公开(公告)号：US07211237B2
公开(公告)日：2007-05-01
申请号：US10723511
申请日：2003-11-26
CPC分类号： H01M4/525 , B82Y30/00 , C01G45/1228 , C01G51/50 , C01G53/50 , C01P2002/52 , C01P2002/54 , C01P2004/62 , C01P2004/64 , C01P2006/40 , H01M4/131 , H01M4/505 , H01M10/0525
摘要： Single-phase lithium-transition metal oxide compounds containing cobalt, manganese and nickel can be prepared by wet milling cobalt-, manganese-, nickel- and lithium-containing oxides or oxide precursors to form a finely-divided slurry containing well-distributed cobalt, manganese, nickel and lithium, and heating the slurry to provide a lithium-transition metal oxide compound containing cobalt, manganese and nickel and having a substantially single-phase O3 crystal structure. Wet milling provides significantly shorter milling times than dry milling and appears to promote formation of single-phase lithium-transition metal oxide compounds. The time savings in the wet milling step more than offsets the time that may be required to dry the slurry during the heating step.
摘要翻译： 含有钴，锰和镍的单相锂 - 过渡金属氧化物化合物可以通过湿法研磨含钴，锰，镍和锂的氧化物或氧化物前体来制备，以形成含有分布均匀的钴的细碎浆料， 锰，镍和锂，并加热浆料以提供含有钴，锰和镍的锂 - 过渡金属氧化物化合物，并且具有基本上单相O 3晶体结构。 湿铣削提供比干磨更明显更短的研磨时间，并且似乎促进单相锂过渡金属氧化物化合物的形成。 湿磨步骤节省的时间大大抵消了在加热步骤中干燥浆料所需的时间。
-
公开(公告)号：US07488465B2
公开(公告)日：2009-02-10
申请号：US11742289
申请日：2007-04-30
CPC分类号： H01M4/525 , B82Y30/00 , C01G45/1228 , C01G51/50 , C01G53/50 , C01P2002/52 , C01P2002/54 , C01P2004/62 , C01P2004/64 , C01P2006/40 , H01M4/131 , H01M4/505 , H01M10/0525
摘要： Single-phase lithium-transition metal oxide compounds containing cobalt, manganese and nickel can be prepared by wet milling cobalt-, manganese-, nickel- and lithium-containing oxides or oxide precursors to form a finely-divided slurry containing well-distributed cobalt, manganese, nickel and lithium, and heating the slurry to provide a lithium-transition metal oxide compound containing cobalt, manganese and nickel and having a substantially single-phase O3 crystal structure. Wet milling provides significantly shorter milling times than dry milling and appears to promote formation of single-phase lithium-transition metal oxide compounds. The time savings in the wet milling step more than offsets the time that may be required to dry the slurry during the heating step.
摘要翻译： 含有钴，锰和镍的单相锂 - 过渡金属氧化物化合物可以通过湿法研磨含钴，锰，镍和锂的氧化物或氧化物前体来制备，以形成含有分布均匀的钴的细碎浆料， 锰，镍和锂，并加热浆料以提供含有钴，锰和镍的锂 - 过渡金属氧化物化合物，并且具有基本上单相O 3晶体结构。 湿铣削提供比干磨更明显更短的研磨时间，并且似乎促进单相锂过渡金属氧化物化合物的形成。 湿磨步骤节省的时间大大抵消了在加热步骤中干燥浆料所需的时间。
-
-
-
-
搜索结果
5 条记录 (耗时 0.019 秒)
