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公开(公告)号：US10734641B2
公开(公告)日：2020-08-04
申请号：US16284335
申请日：2019-02-25
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.
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公开(公告)号：US10243206B2
公开(公告)日：2019-03-26
申请号：US15597025
申请日：2017-05-16
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.
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公开(公告)号：US10367232B2
公开(公告)日：2019-07-30
申请号：US15599298
申请日：2017-05-18
发明人： Ji-Guang Zhang , Jianming Zheng , Shuru Chen
IPC分类号： H01M10/05 , H01M12/08 , H01M10/0569 , H01M10/0568 , H01M10/052 , H01M10/054
摘要： Embodiments of localized superconcentrated electrolytes (LSEs) for stable operation of electrochemical devices, such as rechargeable batteries, supercapacitors, and sensors, are disclosed. Electrochemical devices, such as rechargeable batteries, supercapacitors, and sensors, including the LSEs are also disclosed. The LSEs include an active salt, a solvent in which the active salt is soluble, and a diluent in which the active salt is insoluble or poorly soluble. In certain embodiments, such as when the solvent and diluent are immiscible, the LSE further includes a bridge solvent.
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公开(公告)号：US20190190016A1
公开(公告)日：2019-06-20
申请号：US16284335
申请日：2019-02-25
发明人： Jianming Zheng , Jiguang Zhang , Pengfei Yan , Chongmin Wang , Wengao Zhao , Shuru Chen , Wu Xu
IPC分类号： H01M4/36 , H01M10/0567 , H01M10/052 , H01M10/0569 , H01M4/525 , H01M4/505 , H01M10/0568 , H01M10/0525 , H01M4/58
CPC分类号： H01M4/364 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M10/052 , H01M10/0525 , H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M2004/028 , H01M2300/0037
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.
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公开(公告)号：US20160240896A1
公开(公告)日：2016-08-18
申请号：US15142322
申请日：2016-04-29
发明人： Ji-Guang Zhang , Brian D.G. Adams , Wu Xu , Jianming Zheng
IPC分类号： H01M10/44 , H01M10/054 , H01M10/0568 , H02J7/00 , H01M4/136 , H01M4/66 , H01M2/16 , H01M4/58 , H01M10/0525 , H01M10/0569
摘要： Embodiments of a method for cycling a rechargeable alkali metal battery with high Coulombic efficiency (CE) are disclosed. A slow charge/rapid discharge protocol is used in conjunction with a concentrated electrolyte to achieve high CE in rechargeable lithium and sodium batteries, include anode-free batteries. In some examples, the CE is ≧99.8%.
摘要翻译： 公开了用于循环具有高库仑效率（CE）的可再充电碱金属电池的方法的实施例。 缓慢充电/快速放电方案与浓缩电解质结合使用，以在可再充电锂和钠电池中实现高CE，包括无阳极电池。 在一些例子中，CE是≥99.8％。
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公开(公告)号：US20150280228A1
公开(公告)日：2015-10-01
申请号：US14231058
申请日：2014-03-31
发明人： Jie Xiao , Jianming Zheng , Xilin Chen , Dongping Lu , Jun Liu , Jiguang Zhang
CPC分类号： H01M4/382 , H01M4/04 , H01M4/505 , H01M4/525 , H01M10/4235 , H01M2004/027 , Y02E60/122
摘要： Disclosed herein are embodiments of a lithium-ion battery system comprising an anode, an anode current collector, and a layer of lithium metal in contact with the current collector, but not in contact with the anode. The lithium compensation layer dissolves into the electrolyte to compensate for the loss of lithium ions during usage of the full cell. The specific placement of the lithium compensation layer, such that there is no direct physical contact between the lithium compensation layer and the anode, provides certain advantages.
摘要翻译： 本文公开了包含阳极，阳极集电器和与集电器接触但不与阳极接触的锂金属层的锂离子电池系统的实施方案。 锂补偿层溶解到电解质中以补偿在使用全电池期间锂离子的损失。 锂补偿层的具体放置，使得锂补偿层和阳极之间没有直接的物理接触提供了一些优点。
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公开(公告)号：US10547088B2
公开(公告)日：2020-01-28
申请号：US15142322
申请日：2016-04-29
发明人： Ji-Guang Zhang , Brian D. G. Adams , Wu Xu , Jianming Zheng
IPC分类号： H01M10/42 , H01M10/44 , H01M10/054 , H01M10/0568 , H01M10/0569 , H01M4/136 , H01M4/66 , H02J7/00 , H01M4/38 , H01M10/052
摘要： Embodiments of a method for cycling a rechargeable alkali metal battery with high Coulombic efficiency (CE) are disclosed. A slow charge/rapid discharge protocol is used in conjunction with a concentrated electrolyte to achieve high CE in rechargeable lithium and sodium batteries, include anode-free batteries. In some examples, the CE is ≥99.8%.
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公开(公告)号：US20170338471A1
公开(公告)日：2017-11-23
申请号：US15597025
申请日：2017-05-16
发明人： Jianming Zheng , Jiguang Zhang , Pengfei Yan , Chongmin Wang , Wengao Zhao , Shuru Chen , Wu Xu
IPC分类号： H01M4/36 , H01M4/525 , H01M4/505 , H01M10/0525 , H01M4/58 , H01M10/0568 , H01M10/0569 , H01M4/02
CPC分类号： H01M4/364 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M10/052 , H01M10/0525 , H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M2004/028 , H01M2300/0037
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.
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9.发明申请公开(公告)号：US20180254524A1
公开(公告)日：2018-09-06
申请号：US15599298
申请日：2017-05-18
发明人： Ji-Guang Zhang , Jianming Zheng , Shuru Chen
IPC分类号： H01M10/0569 , H01M10/0568 , H01M4/38 , H01M10/052 , H01M10/24
CPC分类号： H01M10/0569 , H01M10/052 , H01M10/054 , H01M10/0568 , H01M12/08 , H01M2300/004 , Y02E60/128
摘要： Embodiments of localized superconcentrated electrolytes (LSEs) for stable operation of electrochemical devices, such as rechargeable batteries, supercapacitors, and sensors, are disclosed. Electrochemical devices, such as rechargeable batteries, supercapacitors, and sensors, including the LSEs are also disclosed. The LSEs include an active salt, a solvent in which the active salt is soluble, and a diluent in which the active salt is insoluble or poorly soluble. In certain embodiments, such as when the solvent and diluent are immiscible, the LSE further includes a bridge solvent.
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公开(公告)号：US09343736B2
公开(公告)日：2016-05-17
申请号：US14231058
申请日：2014-03-31
发明人： Jie Xiao , Jianming Zheng , Xilin Chen , Dongping Lu , Jun Liu , Jiguang Zhang
CPC分类号： H01M4/382 , H01M4/04 , H01M4/505 , H01M4/525 , H01M10/4235 , H01M2004/027 , Y02E60/122
摘要： Disclosed herein are embodiments of a lithium-ion battery system comprising an anode, an anode current collector, and a layer of lithium metal in contact with the current collector, but not in contact with the anode. The lithium compensation layer dissolves into the electrolyte to compensate for the loss of lithium ions during usage of the full cell. The specific placement of the lithium compensation layer, such that there is no direct physical contact between the lithium compensation layer and the anode, provides certain advantages.
摘要翻译： 本文公开了包含阳极，阳极集电器和与集电器接触但不与阳极接触的锂金属层的锂离子电池系统的实施方案。 锂补偿层溶解到电解质中以补偿在使用全电池期间锂离子的损失。 锂补偿层的具体放置，使得锂补偿层和阳极之间没有直接的物理接触提供了一些优点。
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