公开(公告)号：US20200220172A1

公开(公告)日：2020-07-09

申请号：US16243969

申请日：2019-01-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xingcheng XIAO ,  Li YANG ,  Gayatri V. DADHEECH ,  Gongshin QI ,  Mark W. VERBRUGGE ,  Sherman H. ZENG

IPC: H01M4/525 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0569 ,  H01M10/44

Abstract: A rechargeable lithium-ion battery is provided that includes a positive electrode with a positive electroactive material that in a charged state includes lithium iron (II) orthosilicate (Li2FeSiO4) and in a discharged state includes FeSiO4 or LiFeSiO4. A negative electrode includes phosphorene. A separator is disposed between the positive and negative electrodes. An electrolyte has an organic solvent especially containing ether-based organic solvents and a lithium salt that provides a conductive medium for lithium ions to transfer between the positive electrode and the negative electrode. Such a rechargeable lithium-ion battery provides advantageous power delivery, long driving ranges, and fast charge to enhance widespread use of batteries, especially in vehicles. Furthermore, lithium plating can be minimized or avoided, even at low temperature charging. Methods of recharging a rechargeable lithium-ion battery at low temperatures are also provided.