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公开(公告)号：EP2238637A4
公开(公告)日：2016-08-03
申请号：EP09701906
申请日：2009-01-21
申请人： A123 SYSTEMS LLC
发明人： BECK LARRY , PULLEN ANTHONY E , XU CHUANJING , WANG LIYA , SHOLTES PHILLIP
IPC分类号： C01B25/30 , C01B25/45 , H01M4/58 , H01M10/052 , H01M10/36
CPC分类号： H01M4/5825 , C01B25/45 , H01M10/052 , Y02T10/7011
摘要： A positive electrode material is provided including an electroactive material having one or more phases comprising lithium (Li), an electroactive metal (M), and phosphate (PO4), wherein in the fully lithiated state, the overall composition has a ratio of Li:M ranging from greater than about 1.0 to about 1.3, a ratio of (PO4):M ranging from about 1.0 to about 1.132, M is one or more metals selected from the group consisting of Cr, Mn, Fe, Co, and Ni, and at least one phase includes an olivine lithium electroactive metal phosphate. In some instances, a composite cathode material including an electroactive olivine transition metal phosphate and a lithium and phosphate rich secondary phase is disclosed for use in a lithium ion battery.
摘要翻译： 提供一种正极材料，其包括具有一种或多种锂（Li），电活性金属（M）和磷酸盐（PO4）的一种或多种相的电活性材料，其中，在完全锂化状态下，整体组合物的Li： M的范围为大于约1.0至约1.3，（PO 4）：M的范围为约1.0至约1.132，M为选自Cr，Mn，Fe，Co和Ni中的一种或多种金属， 并且至少一相包括橄榄石锂电活性金属磷酸盐。 在一些情况下，公开了一种用于锂离子电池的复合阴极材料，其包括电活性橄榄石过渡金属磷酸盐和富含锂和磷酸盐的第二相。
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公开(公告)号：EP3114081A4
公开(公告)日：2017-12-13
申请号：EP15758176
申请日：2015-03-06
申请人： A123 SYSTEMS LLC
发明人： BECK LARRY , WILSON JENNIFER , XU CHUANJING , SHI ZHONG-YOU , HAMMOUD MAHA
摘要： An LFP electrode material is provided which has improved impedance, power during cold cranking, rate capacity retention, charge transfer resistance over the current LFP based cathode materials. The electrode material comprises crystalline primary particles and secondary particles, where the primary particle is formed from a plate-shaped single-phase spheniscidite precursor and a lithium source. The LFP includes an LFP phase behavior where the LFP phase behavior includes an extended solid-solution range.
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