公开(公告)号：US10854923B2

公开(公告)日：2020-12-01

申请号：US16119641

申请日：2018-08-31

申请人： Battelle Memorial Institute

发明人： Wu Xu ,  Shuru Chen ,  Ji-Guang Zhang ,  Xia Cao ,  Haiping Jia ,  Bin Liu ,  Xiaodi Ren

IPC分类号： H01M10/0569 ,  H01M4/38 ,  H01M10/0568 ,  H01M10/052 ,  H01M10/42 ,  H01M10/0567

摘要： Low flammability and nonflammable localized superconcentrated electrolytes (LSEs) for stable operation of lithium and sodium ion batteries are disclosed. Electrochemical devices including the low flammability and nonflammable LSEs are also disclosed. The low flammability and nonflammable LSEs include an active salt, a solvent comprising a flame retardant compound, wherein the active salt is soluble in the solvent, and a diluent in which the active salt is insoluble or poorly soluble. The LSE may further include a cosolvent, such as a carbonate, a sulfone, a sulfite, a sulfate, a carboxylate, an ether, a nitrogen-containing solvent, or any combination thereof. In certain embodiments, such as when the solvent and diluent are immiscible, the LSE further includes a bridge solvent.

公开(公告)号：US11127980B2

公开(公告)日：2021-09-21

申请号：US16247143

申请日：2019-01-14

申请人： Battelle Memorial Institute

发明人： Ji-Guang Zhang ,  Haiping Jia ,  Xiaolin Li ,  Wu Xu

IPC分类号： H01M10/0569 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0567 ,  H01M4/36 ,  H01M4/587 ,  H01M4/62 ,  H01M4/38 ,  H01M4/134 ,  H01M10/42 ,  H01M4/133 ,  H01M4/505 ,  H01M4/525

摘要： Localized superconcentrated electrolytes (LSEs) for use in systems with silicon-based or carbon/silicon composite-based anodes are disclosed. The LSEs include an active salt, a nonaqueous solvent in which the active salt is soluble, and a diluent in which the active salt has a solubility at least 10 times less than solubility of the active salt in the nonaqueous solvent. Systems including the LSEs also are disclosed.

公开(公告)号：US20190148775A1

公开(公告)日：2019-05-16

申请号：US16247143

申请日：2019-01-14

申请人： Battelle Memorial Institute

发明人： Ji-Guang Zhang ,  Haiping Jia ,  Xiaolin Li

IPC分类号： H01M10/0569 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0567 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62

摘要： Localized superconcentrated electrolytes (LSEs) for use in systems with silicon-based or carbon/silicon composite-based anodes are disclosed. The LSEs include an active salt, a nonaqueous solvent in which the active salt is soluble, and a diluent in which the active salt has a solubility at least 10 times less than solubility of the active salt in the nonaqueous solvent. Systems including the LSEs also are disclosed.

公开(公告)号：US20190123390A1

公开(公告)日：2019-04-25

申请号：US16119641

申请日：2018-08-31

申请人： Battelle Memorial Institute

发明人： Wu Xu ,  Shuru Chen ,  Ji-Guang Zhang ,  Xia Cao ,  Haiping Jia ,  Bin Liu ,  Xiaodi Ren

IPC分类号： H01M10/0569 ,  H01M10/0568 ,  H01M10/052 ,  H01M4/38

摘要： Low flammability and nonflammable localized superconcentrated electrolytes (LSEs) for stable operation of lithium and sodium ion batteries are disclosed. Electrochemical devices including the low flammability and nonflammable LSEs are also disclosed. The low flammability and nonflammable LSEs include an active salt, a solvent comprising a flame retardant compound, wherein the active salt is soluble in the solvent, and a diluent in which the active salt is insoluble or poorly soluble. The LSE may further include a cosolvent, such as a carbonate, a sulfone, a sulfite, a sulfate, a carboxylate, an ether, a nitrogen-containing solvent, or any combination thereof. In certain embodiments, such as when the solvent and diluent are immiscible, the LSE further includes a bridge solvent.