公开(公告)号：US08334404B2

公开(公告)日：2012-12-18

申请号：US12553366

申请日：2009-09-03

申请人： Brett Lucht ,  Ang Xiao ,  Li Yang ,  Mengqing Xu

发明人： Brett Lucht ,  Ang Xiao ,  Li Yang ,  Mengqing Xu

IPC分类号： C07F9/02

CPC分类号： H01M10/0525 ,  H01M4/131 ,  H01M4/133 ,  H01M10/0566 ,  H01M10/0568 ,  H01M10/0569

摘要： A non-aqueous electrolyte usable in rechargeable lithium-ion batteries including a solution of LiPF6/carbonate based electrolytes with low concentrations of LiFOP such that the thermal stability is increased compared to a standard lithium battery. A method of making lithium tetrafluorophospahte (LiF4C2O4, LiFOP) including, reacting PF5 with lithium oxalate, recrystallizing DMC/dichloromethane from a 1:1 mixture of to separate LiF4OP from LiPF6 to form a lithium salt. An electric current producing rechargeable Li-ion cell. The rechargeable lithium ion cell includes an anode, a cathode, and a non-aqueous electrolyte comprising a solution of a lithium salt in a non-aqueous organic solvent containing lithium tetrafluorooxalatophosphate (LiPF4(C2O4), LiF4OP).

摘要翻译： 可用于可再充电锂离子电池的非水电解质，其包括LiPF 6的LiPF 6 /碳酸盐基电解质溶液，使得与标准锂电池相比热稳定性增加。 制备四氟磷酸锂（LiF 4 C 2 O 4，LiFOP）的方法，其包括使PF5与草酸锂反应，从1:1的混合物中重结晶DMC /二氯甲烷以从LiPF 6分离LiF 4 OP以形成锂盐。 一种产生可再充电锂离子电池的电流。 可充电锂离子电池包括阳极，阴极和包含锂盐在含有四氟草酸磷酸锂（LiPF 4（C 2 O 4），LiF 4 OP）的非水有机溶剂中的溶液的非水电解质。

公开(公告)号：US20110117446A1

公开(公告)日：2011-05-19

申请号：US12975477

申请日：2010-12-22

申请人： Brett Lucht ,  Li Yang ,  Mengqing Xu ,  Ang Xiao

发明人： Brett Lucht ,  Li Yang ,  Mengqing Xu ,  Ang Xiao

IPC分类号： H01M10/056

CPC分类号： H01M10/052 ,  H01M2/16 ,  H01M10/0525 ,  H01M10/056 ,  H01M10/0567 ,  H01M2300/0025 ,  H01M2300/0091 ,  Y02T10/7011

摘要： A lithium ion battery electrolyte for use in lithium ion batteries. The electrolyte includes LiPF6, LiBF4, LiB(C2O4)2, or a related salt dissolved in a mixture of organic carbonate, ether or ester solvents with low concentrations of oxidatively unstable additives such that the additives react with a surface of cathode particles to generate a passivation film which prevents oxidation of the electrolyte by the cathode. The additive is a polymerizable organic molecule selected from 2,3-dihydrofuran (2,3-DHF), 2,5-dihydrofuran (2,5-DHF), vinylene carbonate (VC), vinyltrimethoxysilane (VTMS), dimethyl vinylene cabonate (DMVC), and gamma-buyrolactone, or related unsaturated ethers, esters, or carbonates.

摘要翻译： 锂离子电池用锂离子电池。 电解质包括LiPF 6，LiBF 4，LiB（C 2 O 4）2或溶解在低浓度氧化不稳定的添加剂的有机碳酸酯，醚或酯溶剂的混合物中的相关盐，使得添加剂与阴极颗粒的表面反应产生 防止阴极氧化电解质的钝化膜。 添加剂是选自2,3-二氢呋喃（2,3-DHF），2,5-二氢呋喃（2,5-DHF），碳酸亚乙烯酯（VC），乙烯基三甲氧基硅烷（VTMS），二甲基亚乙烯基二 DMVC）和γ-丁内酯，或相关的不饱和醚，酯或碳酸酯。

公开(公告)号：US20100062346A1

公开(公告)日：2010-03-11

申请号：US12553366

申请日：2009-09-03

申请人： Brett Lucht ,  Ang Xiao ,  Li Yang ,  Mengqing Xu

发明人： Brett Lucht ,  Ang Xiao ,  Li Yang ,  Mengqing Xu

IPC分类号： H01M6/16 ,  H01M6/04 ,  C07F9/06

CPC分类号： H01M10/0525 ,  H01M4/131 ,  H01M4/133 ,  H01M10/0566 ,  H01M10/0568 ,  H01M10/0569

摘要： A non-aqueous electrolyte usable in rechargeable lithium-ion batteries including a solution of LiPF6/carbonate based electrolytes with low concentrations of LiFOP such that the thermal stability is increased compared to a standard lithium battery. A method of making lithium tetrafluorophospahte (LiF4C2O4, LiFOP) including, reacting PF5 with lithium oxalate, recrystallizing DMC/dichloromethane from a 1:1 mixture of to separate LiF4OP from LiPF6 to form a lithium salt. An electric current producing rechargeable Li-ion cell. The rechargeable lithium ion cell includes an anode, a cathode, and a non-aqueous electrolyte comprising a solution of a lithium salt in a non-aqueous organic solvent containing lithium tetrafluorooxalatophosphate (LiPF4(C2O4), LiF4OP).

摘要翻译： 可用于可再充电锂离子电池的非水电解质，其包括LiPF 6的LiPF 6 /碳酸盐基电解质溶液，使得与标准锂电池相比热稳定性增加。 制备四氟磷酸锂（LiF 4 C 2 O 4，LiFOP）的方法，其包括使PF5与草酸锂反应，从1:1的混合物中重结晶DMC /二氯甲烷以从LiPF 6分离LiF 4 OP以形成锂盐。 一种产生可充电锂离子电池的电流。 可充电锂离子电池包括阳极，阴极和包含锂盐在含有四氟草酸磷酸锂（LiPF 4（C 2 O 4），LiF 4 OP）的非水有机溶剂中的溶液的非水电解质。