-
公开(公告)号：US20220158240A1
公开(公告)日：2022-05-19
申请号：US17570972
申请日：2022-01-07
申请人： UT-BATTELLE, LLC
发明人： Beth L. Armstrong , Gabriel M. Veith , Sergiy Kalnaus , Hsin Wang , Katie L. Browning , Kevin M. Cooley
IPC分类号： H01M10/0567 , H01M10/052 , H01M10/0569 , C04B41/88 , H01M10/0568
摘要： A battery includes an anode, a cathode, and a porous separator having a surface and percolating pores providing a porosity of from 20% to 80%. A passively impact resistant composite electrolyte includes an electrolyte and electrically non-conducting particles that enable shear thickening. The particles can have a polydispersity index of no greater than 0.1, an average particle size in a range of from 50 nm to 1 um, and an absolute zeta potential of greater than ±40 mV. The shear thickening enabling particles can be from 10 wt. % to 40 wt. % of the total weight of the separator and shear thickening particles. Between 20-40 wt. % of the shear thickening enabling particles are located in the pores of the separator.
-
公开(公告)号：US20190181504A1
公开(公告)日：2019-06-13
申请号：US15835696
申请日：2017-12-08
申请人： UT-BATTELLE, LLC
IPC分类号： H01M10/0569 , H01M10/0568 , H01M10/0567 , H01M4/48
CPC分类号： H01M10/0569 , H01M4/48 , H01M10/0567 , H01M10/0568
摘要： A passively impact resistant composite electrolyte composition includes an aprotic electrolyte solvent, from 0.5 to 6M of an electrolyte salt, and shear thickening particles having a polydispersity index of no greater than 0.1, an average particle size in a range of 50 nm to 1 um, and an absolute zeta potential of greater than ±40 mV. The shear thickening particles have thereon an electrochemical double layer. The composition further includes a stabilizing surfactant. The stabilizing surfactant includes a first portion for adsorbing to the particles, and a second portion that is absorbed in the solvent. The length of the surfactant from the first portion to the second portion is greater than twice the thickness of the electrochemical double layer. Batteries and electrochemical devices incorporating the electrolyte composition are disclosed. Methods of making the electrolyte composition and of operating a battery are also disclosed.
-
公开(公告)号：US20220166065A1
公开(公告)日：2022-05-26
申请号：US17570982
申请日：2022-01-07
申请人： UT-BATTELLE, LLC
发明人： Beth L. Armstrong , Gabriel M. Veith , Sergiy Kalnaus , Hsin Wang , Katie L. Browning , Kevin M. Cooley
IPC分类号： H01M10/0567 , H01M10/052 , H01M10/0569 , C04B41/88 , H01M10/0568
摘要： A method of making a passively impact resistant battery includes the steps of providing a porous separator material having pores and a surface, and providing a suspension composition including shear thickening enabling particles and a particle suspension solvent for suspending the shear thickening enabling particles. The shear thickening particles have a polydispersity index of no greater than 0.1, an average particle size of in a range of 50 nm to 1 um, and an absolute zeta potential of greater than ±40 mV. The suspension composition is applied to the separator material, wherein a portion of the particles and suspension solvent penetrate the pores. The suspension solvent is evaporated from the separator material. An anode layer and a cathode layer are applied. An electrolyte composition is applied between the anode layer and the cathode layer. The electrolyte composition includes an electrolyte solvent and an electrolyte salt.
-
4.发明授权公开(公告)号：US11233271B2
公开(公告)日：2022-01-25
申请号：US16836297
申请日：2020-03-31
申请人： UT-BATTELLE, LLC
发明人： Beth L. Armstrong , Gabriel M. Veith , Sergiy Kalnaus , Hsin Wang , Katie L. Browning , Kevin M. Cooley
IPC分类号： H01M10/0567 , H01M10/052 , H01M10/0569 , H01M10/0568 , C04B41/88
摘要： A method of making a passively impact resistant composite electrolyte and separator layer includes providing a suspension composition including electrically non-conducting particles that enable shear thickening. The particles can have a polydispersity index of no greater than 0.1, an average particle size in a range of from 50 nm to 1 um, and an absolute zeta potential of greater than ±40 mV. A particle suspension solvent is provided for suspending the particles. The suspension composition is applied to a porous separator material. A portion of the particles and suspension solvent penetrate the pores and the remainder of the particles in the suspension composition are distributed across the surface of the separator material. The suspension solvent is evaporated from the separator material to provide a shear thickening particle loaded separator. A separator assembly and a passivated battery are also disclosed.
-
5.发明申请公开(公告)号：US20200287243A1
公开(公告)日：2020-09-10
申请号：US16836297
申请日：2020-03-31
申请人： UT-BATTELLE, LLC
发明人： Beth L. Armstrong , Gabriel M. Veith , Sergiy Kalnaus , Hsin Wang , Katie L. Browning , Kevin M. Cooley
IPC分类号： H01M10/0567 , H01M10/052 , H01M10/0569 , C04B41/88 , H01M10/0568
摘要： A method of making a passively impact resistant composite electrolyte and separator layer includes providing a suspension composition including electrically non-conducting particles that enable shear thickening. The particles can have a polydispersity index of no greater than 0.1, an average particle size in a range of from 50 nm to 1 um, and an absolute zeta potential of greater than ±40 mV. A particle suspension solvent is provided for suspending the particles. The suspension composition is applied to a porous separator material. A portion of the particles and suspension solvent penetrate the pores and the remainder of the particles in the suspension composition are distributed across the surface of the separator material. The suspension solvent is evaporated from the separator material to provide a shear thickening particle loaded separator. A separator assembly and a passivated battery are also disclosed.
-
公开(公告)号：US10347945B2
公开(公告)日：2019-07-09
申请号：US15835696
申请日：2017-12-08
申请人： UT-BATTELLE, LLC
IPC分类号： H01M4/02 , H01M10/0569 , H01M4/48 , H01M10/0567 , H01M10/0568
摘要： A passively impact resistant composite electrolyte composition includes an aprotic electrolyte solvent, from 0.5 to 6M of an electrolyte salt, and shear thickening particles having a polydispersity index of no greater than 0.1, an average particle size in a range of 50 nm to 1 um, and an absolute zeta potential of greater than ±40 mV. The shear thickening particles have thereon an electrochemical double layer. The composition further includes a stabilizing surfactant. The stabilizing surfactant includes a first portion for adsorbing to the particles, and a second portion that is absorbed in the solvent. The length of the surfactant from the first portion to the second portion is greater than twice the thickness of the electrochemical double layer. Batteries and electrochemical devices incorporating the electrolyte composition are disclosed. Methods of making the electrolyte composition and of operating a battery are also disclosed.
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.014 秒)