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公开(公告)号:WO2022237102A1
公开(公告)日:2022-11-17
申请号:PCT/CN2021/130420
申请日:2021-11-12
Applicant: 蜂巢能源科技股份有限公司
IPC: H01M10/54 , H01M4/505 , H01M4/525 , C01B25/30 , C01G53/006 , C01G53/44 , H01M10/0525 , H01M2004/028
Abstract: 本发明提供了一种镍钴锰正极材料和废旧镍钴锰正极材料的回收方法。该回收方法包括:对废旧镍钴锰正极材料进行破碎,得到粒料;将粒料作为晶种,使含镍源、钴源和锰源的溶液进行沉淀反应,得到镍钴锰前驱体;在镍钴锰前驱体表面进行锂源包覆,形成新的镍钴锰三元正极材料。采用上述回收方法不仅能够缩短废旧镍钴锰正极材料的回收流程,降低成本,还能够提高新的镍钴锰三元正极材料的放电容量和循环性能等电学性能。
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公开(公告)号:WO2021129130A1
公开(公告)日:2021-07-01
申请号:PCT/CN2020/124789
申请日:2020-10-29
Applicant: 蜂巢能源科技有限公司
IPC: C01G53/00 , C01G53/06 , C01F7/30 , H01M4/485 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M4/02 , C01G53/006 , C01G53/44 , C01P2004/80 , C01P2006/10 , C01P2006/40 , H01M2004/028 , H01M2220/20 , E60
Abstract: 一种铝包覆前驱体及其制备方法,其中,所述铝包覆前驱体化学式为xMCO 3(1-x)·Al(OH) 3,其中,M 为镍、钴和锰中的至少之一,x为0.995~0.999。该铝包覆前驱体具有粒度可控且粒度分布均匀、球形度高、颗粒表面光滑、振实密度高、不易破碎、电化学性能和能量密度优异的优势。
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公开(公告)号:WO2022010975A1
公开(公告)日:2022-01-13
申请号:PCT/US2021/040624
申请日:2021-07-07
Applicant: AMERICAN HYPERFORM, INC. , SMITH, William Novis , SWOFFER, Scott
Inventor: SMITH, William Novis , SWOFFER, Scott
IPC: C22B23/00 , C22B3/12 , C22B3/26 , C22B47/00 , C22B7/00 , B09B3/00 , H01M10/54 , C01G53/006 , C22B23/043 , C22B47/0063 , H01M10/0525 , H01M10/4242 , H01M4/505 , H01M4/525 , H01M4/583
Abstract: A process for recovering a nickel cobalt manganese hydroxide from recycled lithium-ion battery (LIB) material, such as black mass, black powder, filter cake, or the like. The recycled LIB material is mixed with water and either sulfuric acid or hydrochloric acid at a pH less than 2. Cobalt, nickel, and manganese oxides from the recycled lithium-ion battery material dissolve into the acidic water with the reductive assistance of gaseous sulfur dioxide. Anode carbon is filtered from the acidic water, leaving the dissolved cobalt, nickel, and manganese oxides in a filtrate. The filtrate is mixed with aqueous sodium hydroxide at a pH greater than 8. Nickel cobalt manganese hydroxide precipitates from the filtrate. The nickel cobalt manganese hydroxide is filtered from the filtrate and dried.
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公开(公告)号:WO2021129108A1
公开(公告)日:2021-07-01
申请号:PCT/CN2020/123616
申请日:2020-10-26
Applicant: 蜂巢能源科技有限公司
IPC: C01G53/00 , H01M4/58 , H01M4/00 , H01M10/052 , H01M10/00 , B60L50/64 , C01G53/006 , C01P2004/32 , C01P2004/61 , H01M4/5825 , E60
Abstract: 一种空心结构碳酸盐二元前驱体及其制备方法和应用,所述前驱体化学式为Ni xMn (1-x)CO 3,其中,x为0.55~0.92。该空心结构碳酸盐二元前驱体具有粒度可控且粒度分布均匀、球形度高、电化学性能和能量密度优异的优势。
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公开(公告)号:WO2022208047A1
公开(公告)日:2022-10-06
申请号:PCT/GB2022/050683
申请日:2022-03-18
Applicant: EV METALS UK LIMITED
Inventor: CAIRNS, Daniel , CONNAGHAN, Paul Frederick , DIAMOND, Andrew , HEAPS, Joshua Andrew
IPC: C01G53/00 , H01M4/505 , H01M4/525 , C01G53/006 , C01G53/42 , C01G53/50 , C01P2002/52 , C01P2002/54 , C01P2004/03 , C01P2004/50 , C01P2004/51 , C01P2004/61 , C01P2006/14 , C01P2006/40
Abstract: The present invention provides a process for producing a particulate lithium nickel metal oxide material having a composition according to Formula 1: LiaNixMyAzO2+b Formula 1 in which: M is one or more of Co and Mn; A is one or more of Al, V, Ti, B, Zr, Cu, Sn, Cr, Fe, Ga, Si, Zn, Mg, Sr, Ca, S, Ce, La, Mo, Nb, P, Sb, and W; 0.8 ≤ a ≤ 1.2 0.5 ≤ x
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公开(公告)号:WO2021258662A1
公开(公告)日:2021-12-30
申请号:PCT/CN2020/135523
申请日:2020-12-11
Applicant: 蜂巢能源科技有限公司
IPC: H01M4/36 , C01B25/45 , C01F7/043 , C01G53/006 , H01M10/0525 , H01M2004/021 , H01M2004/028 , H01M4/366 , H01M4/505 , H01M4/525 , H01M4/624 , E60
Abstract: 一种正极材料、其制备方法和锂离子电池。所述正极材料为核壳结构,核层包括无钴单晶正极活性物质,壳层包括LiAlO 2和LiFePO 4。通过在无钴单晶正极活性物质表面包覆LiAlO 2和LiFePO 4,提高无钴单晶层状正极材料的导电性,从而提高材料的容量、倍率和循环性。
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公开(公告)号:WO2021189997A1
公开(公告)日:2021-09-30
申请号:PCT/CN2020/137771
申请日:2020-12-18
Applicant: 蜂巢能源科技有限公司
IPC: H01M4/36 , C01G53/006 , C01P2004/03 , H01M10/0525 , H01M10/058 , H01M2220/20 , H01M4/131 , H01M4/366 , H01M4/505 , H01M4/525 , H01M4/628 , E60
Abstract: 一种正极材料(100)及制备方法,正极、锂离子电池和车辆。该正极材料(100)包括:基体颗粒(110),所述基体颗粒(110)是单晶颗粒,所述单晶颗粒包括镍锰酸锂和镍钴锰酸锂,所述基体颗粒(110)中靠近表层处具有缓冲层(120),所述缓冲层(120)中Ni、Co、Mn元素的至少之一的含量低于所述基体颗粒(110)其他位置处的含量。该正极材料(100)具有比容量较高、循环稳定性与安全性能较好等优点的至少之一,缓冲层(120)可缓解电解液侵蚀以及抑制活性氧的析出。
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公开(公告)号:WO2021128290A1
公开(公告)日:2021-07-01
申请号:PCT/CN2019/129254
申请日:2019-12-27
Applicant: 格林美股份有限公司 , 荆门市格林美新材料有限公司
IPC: H01M4/36 , H01M4/485 , C01G53/006 , C01G53/44 , H01M10/052 , H01M4/366 , H01M4/505 , H01M4/525 , E60
Abstract: 一种MOF包覆的单晶三元正极材料及其前驱体的制备方法,首先按照摩尔比配置镍钴锰金属盐的A溶液,配置氨水络合剂溶液和液碱;然后将A溶液、氨水络合剂溶液和液碱以加入到反应釜中反应,得到前驱体内核;之后将有机羧酸盐溶于有机溶剂中得到B溶液;将B溶液与锰金属盐溶液加入到上述反应釜中反应,陈化后得到MOF包覆的核壳结构前驱体;将核壳结构前驱体进行低温预烧得到具有单晶结构的镍钴锰氧化物;将该单晶结构的镍钴锰氧化物与一水氢氧化锂在研钵中均匀混合进行高温煅烧,得到MOF包覆的单晶三元正极材料。克服了高镍带来的循环、热稳定性不好的问题,得到正极材料具有高倍率性、高容量和高循环性能的电化学性能。
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公开(公告)号:WO2021040932A1
公开(公告)日:2021-03-04
申请号:PCT/US2020/043621
申请日:2020-07-24
Applicant: NOVONIX BATTERY TESTING SERVICES INC. , BURNS, John
Inventor: OBROVAC, Mark , ZHENG, Lituo , GARAYT, Matthew
IPC: C01G53/006 , C01G53/44
Abstract: Simple, material-efficient microgranulation methods are disclosed for aggregating precursor particles into larger product particles with improved properties and, in some instances, novel structures. The product particles are useful in applications requiring uniform, smooth, spherical, or rounded particles such as for electrode materials in lithium batteries and other applications.
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公开(公告)号:WO2022128805A2
公开(公告)日:2022-06-23
申请号:PCT/EP2021/085261
申请日:2021-12-10
Applicant: BASF SE
Inventor: SOMMER, Heino , ERK, Christoph , HAAG, Jacob , SIOSS, James A , KOEHLER, Daniela , MICHEL, Kathrin , GARVE, Lennart Karl Bernhard , BERGNER, Benjamin Johannes Herbert
IPC: C01G53/00 , H01M4/00 , C01G53/04 , C01G53/006 , C01G53/42 , C01G53/50 , C01P2002/52 , C01P2002/54 , C01P2004/32 , C01P2004/50 , C01P2004/51 , C01P2004/61 , C01P2006/12 , C01P2006/40 , C01P2006/82 , H01M4/525
Abstract: Process for making an electrode active material wherein said process comprises the follow-ing steps: (a) Providing a hydroxide TM(OH)2 or an oxyhydroxide of TM wherein TM is one or more metals and contains Mn and, optionally, Co, and from 85 to 95 mol% Ni, referring to the sum of Ni, Co and Mn, (b) Drying said hydroxide TM(OH)2 or oxyhydroxide of TM at a temperature in the range of from 400 to 600°C, thereby obtaining an oxide or oxyhydroxide of TM with a residual moisture content of from 200 to 500 ppm, (c) mixing said oxide or oxyhydroxide from step (b) with a source of lithium and with at least one compound of Mg or Al and with at least one compound of Ti or Zr, (d) treating the mixture obtained from step (c) thermally at a temperature in the range of from 550 to 875°C.
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