公开(公告)号：US11664536B2

公开(公告)日：2023-05-30

申请号：US17144600

申请日：2021-01-08

申请人： Battelle Memorial Institute

发明人： Wu Xu ,  Ji-Guang Zhang ,  Hao Jia ,  Xianhui Zhang ,  Xia Cao ,  Sujong Chae ,  Ran Yi ,  Qiuyan Li ,  Won-Jin Kwak ,  Xiaolin Li

IPC分类号： H01M10/0568 ,  H01M10/0525 ,  H01M10/0567 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0569

CPC分类号： H01M10/0568 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/004 ,  H01M2300/0034

摘要： Electrolytes for lithium ion batteries with carbon-based, silicon-based, or carbon- and silicon-based anodes include a lithium salt; a nonaqueous solvent comprising at least one of the following components: (i) an ester, (ii) a sulfur-containing solvent, (iii) a phosphorus-containing solvent, (iv) an ether, (v) a nitrile, or any combination thereof, wherein the lithium salt is soluble in the solvent; a diluent comprising a fluoroalkyl ether, a fluorinated orthoformate, a fluorinated carbonate, a fluorinated borate, or a combination thereof, wherein the lithium salt has a solubility in the diluent at least 10 times less than a solubility of the lithium salt in the solvent; and an additive having a different composition than the lithium salt, a different composition than the solvent, and a different composition than the diluent.

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：US10734641B2

公开(公告)日：2020-08-04

申请号：US16284335

申请日：2019-02-25

申请人： Battelle Memorial Institute

发明人： Jianming Zheng ,  Jiguang Zhang ,  Pengfei Yan ,  Chongmin Wang ,  Wengao Zhao ,  Shuru Chen ,  Wu Xu

IPC分类号： H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/052 ,  H01M10/0567 ,  H01M4/02

摘要： High energy density cathode materials, such as LiNixMnyCozO2 (NMC) cathode materials, with improved discharge capacity (hence energy density) and enhanced cycle life are described. A solid electrolyte, such as lithium phosphate infused inside of secondary particles of the cathode material demonstrates significantly enhanced structural integrity without significant or without any observable particle cracking occurring during charge/discharge processes, showing high capacity retention of more than 90% after 200 cycles at room temperature. In certain embodiments the disclosed cathode materials (and cathodes made therefrom) are formed using nickel-rich NMC and/or are used in a battery system with a non-aqueous dual-Li salt electrolytes.

公开(公告)号：US10243206B2

公开(公告)日：2019-03-26

申请号：US15597025

申请日：2017-05-16

申请人： Battelle Memorial Institute

发明人： Jianming Zheng ,  Jiguang Zhang ,  Pengfei Yan ,  Chongmin Wang ,  Wengao Zhao ,  Shuru Chen ,  Wu Xu

IPC分类号： H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/052 ,  H01M10/0567 ,  H01M4/02

摘要： High energy density cathode materials, such as LiNiXMnYCoZO2 (NMC) cathode materials, with improved discharge capacity (hence energy density) and enhanced cycle life are described. A solid electrolyte, such as lithium phosphate infused inside of secondary particles of the cathode material demonstrates significantly enhanced structural integrity without significant or without any observable particle cracking occurring during charge/discharge processes, showing high capacity retention of more than 90% after 200 cycles at room temperature. In certain embodiments the disclosed cathode materials (and cathodes made therefrom) are formed using nickel-rich NMC and/or are used in a battery system with a non-aqueous dual-Li salt electrolytes.

公开(公告)号：US20160072151A1

公开(公告)日：2016-03-10

申请号：US14869647

申请日：2015-09-29

申请人： Battelle Memorial Institute

发明人： Ji-Guang Zhang ,  Ruiguo Cao ,  Wesley A. Henderson ,  Kuber Mishra ,  Wu Xu

IPC分类号： H01M10/0568 ,  H01M4/58 ,  H01M4/38 ,  H01M4/66 ,  H01M10/054 ,  H01M10/0569

CPC分类号： H01M10/0568 ,  H01M4/381 ,  H01M4/5815 ,  H01M4/661 ,  H01M4/663 ,  H01M10/054 ,  H01M10/0569 ,  H01M2300/0025 ,  H01M2300/0028 ,  H01M2300/0037

摘要： Embodiments of a non-aqueous electrolyte for a rechargeable sodium (Na)-based battery comprise a sodium salt and a nonaqueous solvent, the electrolyte having a sodium salt concentration ≧2.5 M or a solvent-sodium salt mole ratio ≦4:1. Na-based rechargeable batteries including the electrolyte exhibit both high cycling stability and high coulombic efficiency (CE). Some embodiments of the disclosed batteries attain a CE≧80% within 10-30 charge-discharge cycles and maintain a CE≧80% for at least 100 charge-discharge cycles. In certain embodiments, the battery is an anode-free battery in the as-assembled initial state.

摘要翻译： 用于可再充电的钠（钠）电池的非水电解质的实施方案包括钠盐和非水溶剂，电解质的钠盐浓度≥2.5M或溶剂 - 钠盐摩尔比＆nlE; 4:1。 包括电解质的钠基可再充电电池具有高的循环稳定性和高的库仑效率（CE）。 所公开的电池的一些实施例在10-30次充放电循环中达到CE≥80％，并且在至少100次充放电循环中保持CE≥80％。 在某些实施例中，电池是处于组装初始状态的无阳极电池。

公开(公告)号：US10170795B2

公开(公告)日：2019-01-01

申请号：US14869647

申请日：2015-09-29

申请人： Battelle Memorial Institute

发明人： Ji-Guang Zhang ,  Ruiguo Cao ,  Wesley A. Henderson ,  Kuber Mishra ,  Wu Xu

IPC分类号： H01M10/0568 ,  H01M10/054 ,  H01M10/0569 ,  H01M4/38 ,  H01M4/66 ,  H01M4/58

摘要： Embodiments of a non-aqueous electrolyte for a rechargeable sodium (Na)-based battery comprise a sodium salt and a nonaqueous solvent, the electrolyte having a sodium salt concentration ≥2.5 M or a solvent-sodium salt mole ratio ≤4:1. Na-based rechargeable batteries including the electrolyte exhibit both high cycling stability and high coulombic efficiency (CE). Some embodiments of the disclosed batteries attain a CE≥80% within 10-30 charge-discharge cycles and maintain a CE≥80% for at least 100 charge-discharge cycles. In certain embodiments, the battery is an anode-free battery in the as-assembled initial state.

公开(公告)号：US20150056488A1

公开(公告)日：2015-02-26

申请号：US14337041

申请日：2014-07-21

申请人： Battelle Memorial Institute

发明人： Ji-Guang Zhang ,  Wu Xu ,  Xilin Chen ,  Jiulin Wang ,  Yaohui Zhang ,  Jianfeng Qian

IPC分类号： H01M10/0565 ,  H01M10/0525

CPC分类号： H01M10/0565 ,  H01B1/122 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0567 ,  H01M10/4235 ,  H01M2300/0082 ,  H01M2300/0085 ,  H01M2300/0088

摘要： The Coulombic efficiency of metal deposition/stripping can be improved while also preventing dendrite formation and growth by an improved electrolyte composition. The electrolyte composition also reduces the risk of flammability. The electrolyte composition includes a polymer and/or additives to form high quality SEI layers on the anode surface and to prevent further reactions between metal and electrolyte components. The electrolyte composition further includes additives to suppress dendrite growth during charge/discharge processes. The electrolyte composition can also be applied to lithium and other kinds of energy storage devices.

摘要翻译： 可以提高金属沉积/剥离的库仑效率，同时还通过改进的电解质组成防止枝晶形成和生长。 电解质组合物还降低了可燃性的风险。 电解质组合物包括在阳极表面上形成高质量SEI层并且防止金属和电解质组分之间进一步反应的聚合物和/或添加剂。 电解质组合物还包括在充电/放电过程中抑制枝晶生长的添加剂。 电解质组合物也可以应用于锂和其他种类的储能装置。

公开(公告)号：US20140295298A1

公开(公告)日：2014-10-02

申请号：US14270561

申请日：2014-05-06

申请人： BATTELLE MEMORIAL INSTITUTE

发明人： Jiguang Zhang ,  Jie Xiao ,  Jun Liu ,  Wu Xu ,  Xiaolin Li ,  Deyu Wang

IPC分类号： H01M4/583 ,  H01M10/052 ,  H01M12/00

CPC分类号： H01M4/583 ,  H01M4/133 ,  H01M4/382 ,  H01M4/5835 ,  H01M4/587 ,  H01M4/96 ,  H01M6/16 ,  H01M10/052 ,  H01M12/00 ,  H01M12/08 ,  H01M2004/021 ,  Y02E60/128

摘要： Some batteries can exhibit greatly improved performance by utilizing electrodes having randomly arranged graphene nanosheets forming a network of channels defining continuous flow paths through the electrode. The network of channels can provide a diffusion pathway for the liquid electrolyte and/or for reactant gases. Metal-air batteries can benefit from such electrodes. In particular Li-air batteries show extremely high capacities, wherein the network of channels allow oxygen to diffuse through the electrode and mesopores in the electrode can store discharge products.

摘要翻译： 一些电池可以通过利用具有随机排列的石墨烯纳米片的电极而显示出极大的改进的性能，该电极形成限定通过电极的连续流动路径的通道网络。 通道网络可以为液体电解质和/或反应气体提供扩散途径。 金属空气电池可以从这样的电极中受益。 特别地，Li空气电池显示出极高的容量，其中通道网络允许氧气扩散通过电极，并且电极中的介孔可以存储放电产物。

公开(公告)号：US11705580B2

公开(公告)日：2023-07-18

申请号：US17537149

申请日：2021-11-29

申请人： Battelle Memorial Institute

发明人： Xia Cao ,  Ji-Guang Zhang ,  Wu Xu

IPC分类号： H01M10/0569 ,  H01M10/0567 ,  H01M10/0568 ,  H01M4/505 ,  H01M4/587 ,  H01M4/38 ,  H01M4/525

CPC分类号： H01M10/0569 ,  H01M4/386 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0567 ,  H01M10/0568 ,  H01M2300/0042 ,  H01M2300/0051

摘要： Electrolytes for lithium ion batteries with carbon-based, silicon-based, or carbon- and silicon-based anodes include a lithium salt; a nonaqueous solvent comprising at least one of the following components: (i) an ester, (ii) a sulfur-containing solvent, (iii) a phosphorus-containing solvent, (iv) an ether, (v) a nitrile, or any combination thereof, wherein the lithium salt is soluble in the solvent; a diluent comprising a fluoroalkyl ether, a fluorinated orthoformate, a fluorinated carbonate, a fluorinated borate, a fluorinated phosphate, a fluorinated phosphite, or any combination thereof, wherein the lithium salt has a solubility in the diluent at least 10 times less than a solubility of the lithium salt in the solvent; and an additive having a different composition than the lithium salt, a different composition than the solvent, and a different composition than the diluent. In some electrolytes, the nonaqueous solvent comprises an ester.

公开(公告)号：US20220115706A1

公开(公告)日：2022-04-14

申请号：US17537149

申请日：2021-11-29

申请人： Battelle Memorial Institute

发明人： Xia Cao ,  Ji-Guang Zhang ,  Wu Xu

IPC分类号： H01M10/0569 ,  H01M10/0567 ,  H01M10/0568 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M4/38

摘要： Electrolytes for lithium ion batteries with carbon-based, silicon-based, or carbon- and silicon-based anodes include a lithium salt; a nonaqueous solvent comprising at least one of the following components: (i) an ester, (ii) a sulfur-containing solvent, (iii) a phosphorus-containing solvent, (iv) an ether, (v) a nitrile, or any combination thereof, wherein the lithium salt is soluble in the solvent; a diluent comprising a fluoroalkyl ether, a fluorinated orthoformate, a fluorinated carbonate, a fluorinated borate, a fluorinated phosphate, a fluorinated phosphite, or any combination thereof, wherein the lithium salt has a solubility in the diluent at least 10 times less than a solubility of the lithium salt in the solvent; and an additive having a different composition than the lithium salt, a different composition than the solvent, and a different composition than the diluent. In some electrolytes, the nonaqueous solvent comprises an ester.