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公开(公告)号:US20220246987A1
公开(公告)日:2022-08-04
申请号:US17158742
申请日:2021-01-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
IPC: H01M10/0568 , H01M10/0569 , H01M4/38 , H01M10/052 , H01M4/58
Abstract: An electrochemical cell according to various aspects of the present disclosure includes a positive electrode, a negative electrode, a separator, and an electrolyte. The positive electrode includes a positive electroactive material. The positive electroactive material includes a phospho-olivine compound. The negative electrode includes lithium metal. The separator is between the positive electrode and the negative electrode. The separator is electrically insulating and ionically conductive. The electrolyte includes a ternary salt and a solvent. The ternary salt includes LiPF6, LiFSI, and LiClO4.
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公开(公告)号:US20220238861A1
公开(公告)日:2022-07-28
申请号:US17158737
申请日:2021-01-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Meinan HE , Biqiong WANG , Mei CAI
Abstract: An electrode precursor or slurry according to various aspects of the present disclosure includes a blended electroactive material and a binder solution. The blended electroactive material includes a first electroactive material and a second electroactive material. The first electroactive material includes nickel. The first electroactive material is selected from the group consisting of LiNixCoyMnzO2 where x is greater than 0.6, LiNixCoyAlzO2 where x is greater than 0.6, LiNixCoyMnzAlαO2 where x is greater than 0.6, or any combination thereof. The second electroactive material includes a phosphor-olivine compound at less than or equal to about 30 weight percent of the blended electroactive material. The binder solution including a polymeric binder and a solvent including N-methyl-2-pyrrolidone. In various aspects, the present disclosure provides a high-nickel-content positive electrode formed from the slurry. In various aspects, the present disclosure provides an electrochemical cell including the positive electrode and a lithium metal negative electrode.
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公开(公告)号:US20210194054A1
公开(公告)日:2021-06-24
申请号:US16725550
申请日:2019-12-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Fang DAI , Shuru CHEN , Mei CAI
IPC: H01M10/0565 , H01M10/0525 , C08F122/20
Abstract: The present technology relates to gel electrolytes for using in lithium-ion electrochemical cells and methods of forming the same. For example, the method may include adding one or more gelation reagents to an electrochemical cell including one or more liquid electrolyte precursors. The one or more gelation reagents include one or more initiators and one or more crosslinking agents. Each of the one or more initiators may be one of a thermal initiator and an actinic/electron beam initiator. Each of the one or more crosslinking agents may be one of a tridentate alkane and a tetradentate alkane having one or more substitutes including a terminal group represented by:
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34.
公开(公告)号:US20210187903A1
公开(公告)日:2021-06-24
申请号:US16725807
申请日:2019-12-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Abstract: A thermal insulation component according to various aspects of the present disclosure includes a matrix, a crosslinking precursor, and a crosslinking initiator. The matrix includes a thermal insulation material having a thermal conductivity of less than or equal to about 5 W/mK. The crosslinking precursor is embedded in the matrix. The crosslinking precursor includes at least one of an acrylate functional group or a methacrylate functional group. The crosslinking initiator is embedded in the matrix. The crosslinking initiator is configured to decompose to initiate crosslinking of the crosslinking precursor. In certain aspects, the present disclosure also provides an electronics assembly including an electronic component and a thermal insulation material in thermal communication with the electronic component. In certain aspects, the present disclosure also provides methods of manufacturing the thermal insulation component.
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公开(公告)号:US20210083294A1
公开(公告)日:2021-03-18
申请号:US16573605
申请日:2019-09-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Xingcheng XIAO , Jin LIU , Jiagang XU , Mei CAI , Sherman H. ZENG
IPC: H01M4/62 , H01M4/04 , H01M10/0525 , H01M4/485 , H01M4/60 , H01M4/131 , H01M4/137 , H01M4/1391 , H01M4/1399
Abstract: An electrode including an electrode active material and a ceramic hydrofluoric acid (HF) scavenger is provided. The ceramic hydrofluoric acid (HF) scavenger includes M2SiO3, MAlO2, M2O—Al2O3—SiO2, or combinations thereof, where M is lithium (Li), sodium (Na), or combinations thereof. Methods of making the electrode are also provided.
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公开(公告)号:US20180248182A1
公开(公告)日:2018-08-30
申请号:US15964179
申请日:2018-04-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Gayatri V. DADHEECH , Xingcheng XIAO , Mei CAI
Abstract: In an example of a method for making a sulfur-based positive electrode active material, a carbon layer is formed on a sacrificial nanomaterial. The carbon layer is coated with titanium dioxide to form a titanium dioxide layer. The sacrificial nanomaterial is removed to form a hollow material including a hollow core surrounded by a carbon and titanium dioxide double shell. Sulfur is impregnated into the hollow core.
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