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

IPC分类号： C01B25/45 ,  C01B25/37 ,  H01M4/02 ,  H01M4/58

CPC分类号： H01M4/5825 ,  C01B25/45 ,  H01M4/364 ,  H01M4/386 ,  H01M4/485 ,  H01M4/587

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.