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公开(公告)号：US20150236324A1
公开(公告)日：2015-08-20
申请号：US14617322
申请日：2015-02-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Qiangfeng Xiao , Anne M. Dailly , Li Yang , Zhongyi Liu , Mei Cai
IPC: H01M2/16 , H01M2/14 , H01M10/052
CPC classification number: H01M2/1686 , H01M2/145 , H01M2/1653 , H01M10/052
Abstract: A lithium-based battery separator includes a porous polymer membrane having opposed surfaces. A porous carbon coating is formed on one of the opposed surfaces of the porous polymer membrane. Polycations are incorporated in the porous carbon coating, in the porous polymer membrane, or in both the porous carbon coating and the porous polymer membrane.
Abstract translation: 锂基电池隔板包括具有相对表面的多孔聚合物膜。 在多孔聚合物膜的相对表面之一上形成多孔碳涂层。 聚阳离子掺入多孔碳涂层，多孔聚合物膜或多孔碳涂层和多孔聚合物膜中。
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12.发明申请公开(公告)号：US20150056493A1
公开(公告)日：2015-02-26
申请号：US14026113
申请日：2013-09-13
Applicant: GM Global Technology Operations LLC
Inventor： Gayatri Vyas Dadheech , Li Yang , Mei Cai
CPC classification number: H01M4/0423 , C23C14/0605 , C23C14/08 , C23C14/28 , H01M2/162 , H01M2/1686 , H01M4/1391 , H01M4/1397 , H01M4/366 , H01M4/505 , H01M4/5815 , H01M2004/028
Abstract: An example of a porous separator includes an untreated porous polymer membrane, and a nanocomposite structure i) formed on a surface of the porous polymer membrane, or ii) dispersed in pores of the porous polymer membrane, or iii) combinations of i and ii. The nanocomposite structure is selected from the group consisting of a carbon nanocomposite structure, a metal oxide nanocomposite structure, and a mixed carbon and metal oxide nanocomposite structure.
Abstract translation: 多孔分离器的实例包括未经处理的多孔聚合物膜和形成在多孔聚合物膜的表面上的纳米复合结构i），或ii）分散在多孔聚合物膜的孔中，或iii）i和ii的组合。 纳米复合结构选自碳纳米复合结构，金属氧化物纳米复合结构和混合碳和金属氧化物纳米复合结构。
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13.发明申请SINGLE-LITHIUM ION CONDUCTOR AS BINDER IN LITHIUM-SULFUR OR SILICON-SULFUR BATTERY 有权单独的锂离子电导体作为硫酸锂或硅硫电池中的粘合剂公开(公告)号：US20140265557A1
公开(公告)日：2014-09-18
申请号：US13836101
申请日：2013-03-15
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Xiaosong Huang , Mei Cai , Mark W. Verbrugge , Li Yang
CPC classification number: H01M4/364 , H01M4/137 , H01M4/604 , H01M4/622 , H01M4/623 , H01M10/052 , H02J7/00 , Y02E60/122 , Y02T10/7011
Abstract: A sulfur-containing electrode has a binder comprising a single-lithium ion conductor. The electrode may be used a cathode in a lithium-sulfur or silicon-sulfur battery.
Abstract translation: 含硫电极具有包含单锂离子导体的粘合剂。 电极可以用于锂硫或硅硫电池中的阴极。
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公开(公告)号：US11870089B2
公开(公告)日：2024-01-09
申请号：US17695070
申请日：2022-03-15
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Andrew C. Bobel , Anil K. Sachdev , Patrick H. Clark , Pooja Suresh , Ran Wu , Jermain E. Onye , William Y. Chen , Li Yang , Chao Hu , Yunshan Liu , Kuo Sun
IPC: H01M50/242 , H01M50/209 , H01M10/658
CPC classification number: H01M50/242 , H01M10/658 , H01M50/209
Abstract: A battery cell pack has a plurality of battery cells that are assembled into a prismatic frame, with deformable separators interposed to accommodate elastic and plastic deformation caused by cyclic and acyclic expansion and contraction thereof during charging and discharging over the life of the battery cell pack. The battery cells are arranged in a horizontal stack within the prismatic frame, and the deformable separators are interposed between subsets of the battery cells. The deformable separators exert compressive force on the subsets of the battery cells along a longitudinal axis that is defined by the horizontal stack. The compressive force exerted by the deformable separators is at least a minimum force over a service life of the battery cell pack.
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公开(公告)号：US20230155174A1
公开(公告)日：2023-05-18
申请号：US17525115
申请日：2021-11-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Seung-Woo Chu , Li Yang , Umamaheswari Viswanathan , Mary E Fortier
IPC: H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M10/0525
CPC classification number: H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M10/0525 , H01M2300/0028
Abstract: An electrolyte for a lithium metal battery includes a nonaqueous aprotic organic solvent, a lithium salt dissolved in the nonaqueous aprotic organic solvent and, by volume, from 1% to 10% of a flame retardant additive. The flame retardant additive is at least one of an organophosphate compound, an organophosphite compound, organophosphonate compound, or a phosphazene compound.
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Patent Agency Ranking
公开(公告)号：US20230155133A1
公开(公告)日：2023-05-18
申请号：US17525096
申请日：2021-11-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Kanako Okada , Jesse M. Roy , Li Yang , Mary E. Fortier
IPC: H01M4/62 , H01M4/134 , H01M4/1395 , H01M4/04 , H01M10/052 , H01M4/505 , H01M4/525
CPC classification number: H01M4/628 , H01M4/134 , H01M4/1395 , H01M4/0402 , H01M10/052 , H01M4/505 , H01M4/525 , H01M2300/0025
Abstract: A negative electrode for an electrochemical cell of a secondary lithium metal battery is manufactured by a method in which a precursor solution is applied to a major surface of a lithium metal substrate to form a protective interfacial layer thereon. The precursor solution includes a first organic solvent mixture, a dioxolane, and a fluorinated organosilane. The protective interfacial layer exhibits a composite structure including a polymeric matrix component and a lithium-containing dispersed component embedded in the polymeric matrix component.
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公开(公告)号：US11196045B2
公开(公告)日：2021-12-07
申请号：US15886396
申请日：2018-02-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Gayatri V. Dadheech , Li Yang , Mark W. Verbrugge
Abstract: Methods of forming a lithium-based negative electrode assembly are provided. A surface of a metal current collector is treated with a reducing plasma gas so that after the treating, a treated surface of the metal current collector is formed that has a contact angle of less than or equal to about 10° and has less than or equal to about 5% metal oxides. The metal current collector may include a metal, such as copper, nickel, and iron. A lithium metal is applied to the treated surface of the metal current collector in an environment substantially free from oxidizing species. Lithium metal flows over and adheres to the treated surface to form a layer of lithium. The layer of lithium may be a thin layer having a thickness of ≥about 1 μm to ≤about 75 μm thus forming the lithium metal negative electrode assembly.
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公开(公告)号：US11114696B2
公开(公告)日：2021-09-07
申请号：US15856292
申请日：2017-12-28
Applicant: GM Global Technology Operations LLC
IPC: H01M10/0568 , H01M10/0525 , H01M10/0569 , H01M10/058 , H01M4/58
Abstract: An electrolyte system for an electrochemical cell having an electrode comprising a chalcogen-containing electroactive material is provided, along with methods of making the electrolyte system. The electrolyte system includes one or more lithium salts dissolved in one or more solvents. The salts have a concentration in the electrolyte of greater than or equal to about 2M to less than or equal to about 5M. The electrochemical cell including the electrolyte system has a minimum potential greater than or equal to about 0.8 V to less than or equal to about 1.8 V and a maximum charge potential of greater than or equal to about 2.5 V to less than or equal to about 3 V.
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公开(公告)号：US11101501B2
公开(公告)日：2021-08-24
申请号：US16659005
申请日：2019-10-21
Inventor： Fang Liu , Qiangfeng Xiao , Yunfeng Lu , Mei Cai , Fang Dai , Li Yang
IPC: H01M10/0567 , H01M10/0569 , H01M10/0568 , H01M10/42
Abstract: An example electrolyte includes a solvent, a lithium salt, and an additive selected from the group consisting of a mercaptosilane, a mercaptosiloxane, and combinations thereof. The electrolyte may be used in a method for making a solid electrolyte interface (SEI) layer on a surface of an electrode. A negative electrode structure may be formed from the method.
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公开(公告)号：US10707530B2
公开(公告)日：2020-07-07
申请号：US15677389
申请日：2017-08-15
Applicant: GM Global Technology Operations LLC
Inventor： Li Yang , Mei Cai , Fang Dai , Yingnan Dong
IPC: H01M4/02 , H01M10/0568 , H01M10/0525 , H01M10/0569 , H01M10/052
Abstract: A highly-concentrated electrolyte system for an electrochemical cell is provided, along with methods of making the electrolyte system. The electrolyte system includes a bound moiety having an ionization potential greater than an electron affinity and comprising one or more salts selected from the group consisting of: lithium bis(fluorosulfonyl)imide, sodium bis(fluorosulfonyl)imide, potassium bis(fluorosulfonyl)imide, and combinations thereof bound to a solvent comprising one or more solvents selected from the group consisting of: dimethyl carbonate, dimethyl dicarbonate, and combinations thereof. The salts have a concentration in the electrolyte system of greater than or equal to about 4 M. A molar ratio of the salts to the dimethyl carbonate is about 0.5. A molar ratio of the salts to the dimethyl dicarbonate is about 1. The salts binds to the dimethyl carbonate and/or dimethyl dicarbonate causing the electrolyte system to be substantially free of unbound dimethyl carbonate, unbound dimethyl dicarbonate, and unbound bis(fluorosulfonyl)imide.
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