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公开(公告)号：US20240170678A1
公开(公告)日：2024-05-23
申请号：US18119442
申请日：2023-03-09
发明人： Yong Il Cho , Geun Ho Choi , Hannah Song , Hyun Jin Kim , Hyeon Ha Lee , Chan Bum Park , Jang Wook Choi , Tae Geun Lee , Ji Woo An
CPC分类号： H01M4/667 , H01M4/623 , H01M2220/20
摘要： Disclosed are an anode including a core part and a binder and a secondary battery including the same. Particularly, a coating layer including a polymer is provided between the core part and the binder and thus blocks electron transport paths from the core part to the binder. Thereby, decomposition of the binder is suppressed, and thus, the charge capacity and the initial Coulombic efficiency of the secondary battery are increased.
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公开(公告)号：US11788619B2
公开(公告)日：2023-10-17
申请号：US17951901
申请日：2022-09-23
发明人： Hoon Han , Gwangil Du , Kyeongkeun Kim , Mingyun Jo , Jae Young Choi , Hannah Song
CPC分类号： F16H61/0213 , F16H59/18 , F16H59/54 , F16H61/16 , F16H59/22 , F16H61/08 , F16H2059/6807 , F16H2061/161 , F16H2061/163
摘要： A method for controlling a transmission of a vehicle includes: determining whether a controller receives an acceleration pedal off signal corresponding to a lift foot up (LFU) shift request signal from an acceleration pedal sensor; determining whether an output signal value of a brake pedal sensor detecting a position value of a brake pedal is less than a brake reference value when the acceleration pedal off signal is received; determining whether a gear shifting progressing rate of the transmission performing a LFU shift in response to the LFU shift request signal is less than a progressing rate reference value when an output signal value of the brake pedal sensor is equal to or greater than the brake reference value; and controlling the transmission to hold the LFU shift when the gear shifting progressing rate of the transmission is less than the progressing rate reference value.
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3.发明公开公开(公告)号：US20240030404A1
公开(公告)日：2024-01-25
申请号：US18124187
申请日：2023-03-21
发明人： Hannah Song , Hyunjin Kim , Chan Bum Park
IPC分类号： H01M4/1393 , H01M10/0525 , H01M4/62 , H01M4/04
CPC分类号： H01M4/1393 , H01M10/0525 , H01M4/622 , H01M4/0435 , H01M2004/027
摘要： Provided are a negative electrode manufacturing method capable of forming a graphite layer oriented in one direction by using a dry process, and a negative electrode and a lithium secondary battery manufactured using the method. The manufacturing method includes: preparing a powder mixture including a plate-shaped graphite and a binder; a granulation step of preparing a graphite granule by processing the powder mixture such that graphite is oriented in one direction; preparing a graphite film in which the graphite is oriented in a thickness direction by shaping the prepared graphite granule; and laminating the graphite film on at least one surface of a negative electrode substrate.
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公开(公告)号：US20230184325A1
公开(公告)日：2023-06-15
申请号：US17951901
申请日：2022-09-23
发明人： Hoon Han , Gwangil Du , Kyeongkeun Kim , Mingyun Jo , Jae Young Choi , Hannah Song
CPC分类号： F16H61/0213 , F16H59/54 , F16H59/18 , F16H61/16 , F16H2061/163 , F16H2061/161
摘要： A method for controlling a transmission of a vehicle includes: determining whether a controller receives an acceleration pedal off signal corresponding to a lift foot up (LFU) shift request signal from an acceleration pedal sensor; determining whether an output signal value of a brake pedal sensor detecting a position value of a brake pedal is less than a brake reference value when the acceleration pedal off signal is received; determining whether a gear shifting progressing rate of the transmission performing a LFU shift in response to the LFU shift request signal is less than a progressing rate reference value when an output signal value of the brake pedal sensor is equal to or greater than the brake reference value; and controlling the transmission to hold the LFU shift when the gear shifting progressing rate of the transmission is less than the progressing rate reference value.
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公开(公告)号：US12126003B2
公开(公告)日：2024-10-22
申请号：US17524241
申请日：2021-11-11
发明人： Hannah Song , Sangwook Han , Kyeong Wi Park
IPC分类号： B05B5/14 , B05D1/00 , B29C48/00 , B29C65/00 , B32B37/08 , B32B37/10 , H01M4/04 , H01M4/133 , H01M4/1393 , B29L31/34
CPC分类号： H01M4/0435 , B05B5/14 , B05D1/007 , B29C48/0021 , B29C66/818 , B29C66/83423 , B32B37/08 , B32B37/1027 , H01M4/133 , H01M4/1393 , B29L2031/3468 , B32B2457/10
摘要： A system for fabricating an electrode film for a secondary battery includes a powder film fabrication unit configured to form mixture powder with active material powder, binder powder, and conductive material powder, and fabricating a powder film roll by fibrillating the mixture powder, a base material film fabrication unit configured to form a mixture solution with carbon-based powder, the binder powder, and organic solvent, and form a base material film roll by patterning the mixture solution on a base material film, and an electrode film fabrication unit configured to dispose the base material film roll between two powder film rolls, and form an electrode film roll by overlapping and bonding the powder film and the base material film.
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公开(公告)号：US20220199997A1
公开(公告)日：2022-06-23
申请号：US17397190
申请日：2021-08-09
发明人： Sangwook Han , Hannah Song , Kyeong Wi Park
IPC分类号： H01M4/58 , H01M4/66 , H01M10/0562 , H01M10/058 , H01M4/04
摘要： An embodiment all solid state battery includes a sulfide-based solid electrolyte layer, a negative electrode comprising a negative active material layer stacked on a first surface of the solid electrolyte layer and a negative buffer layer stacked on a first surface of the negative active material layer, and a positive electrode comprising a positive active material layer stacked on a second surface of the solid electrolyte layer and a positive buffer layer stacked on a second surface of the positive active material layer.
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公开(公告)号：US20240258503A1
公开(公告)日：2024-08-01
申请号：US18419813
申请日：2024-01-23
发明人： Hannah Song , Yongil Cho , Chanbum Park , Hyeonha Lee , Hyunjin Kim
CPC分类号： H01M4/366 , H01M4/0416 , H01M4/0435 , H01M4/622
摘要： A battery electrode and its manufacturing method. In particular, the battery electrode includes: a separator; a first composite layer disposed on the separator and having a first active material, a first binder, and a first conductive material; a second composite layer disposed on the first composite layer and having a second active material, a second binder, and a second conductive material; a third composite layer disposed on the second composite layer and having a third active material, a third binder, and a third conductive material; and a substrate disposed on the third composite layer. A resistance of the first composite layer is less than that of the second composite layer, and a resistance of the second composite layer is less than that of the third composite layer.
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公开(公告)号：US11749801B2
公开(公告)日：2023-09-05
申请号：US17397190
申请日：2021-08-09
发明人： Sangwook Han , Hannah Song , Kyeong Wi Park
IPC分类号： H01M4/58 , H01M4/66 , H01M4/04 , H01M10/058 , H01M10/056 , H01M10/0562 , H01M4/02
CPC分类号： H01M4/5815 , H01M4/0404 , H01M4/661 , H01M4/663 , H01M4/666 , H01M10/058 , H01M10/0562 , H01M2004/027 , H01M2004/028 , H01M2300/0068
摘要： An embodiment all solid state battery includes a sulfide-based solid electrolyte layer, a negative electrode comprising a negative active material layer stacked on a first surface of the solid electrolyte layer and a negative buffer layer stacked on a first surface of the negative active material layer, and a positive electrode comprising a positive active material layer stacked on a second surface of the solid electrolyte layer and a positive buffer layer stacked on a second surface of the positive active material layer.
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公开(公告)号：US11931705B2
公开(公告)日：2024-03-19
申请号：US16944814
申请日：2020-07-31
发明人： Hannah Song , Daehyeon Joung , Sung Hoon Jeong
IPC分类号： B32B9/00 , B01F23/50 , B01F23/53 , B01F27/27 , B01F27/80 , B01F33/82 , B01F35/71 , C01B32/174 , B82Y30/00 , B82Y40/00
CPC分类号： B01F23/53 , B01F23/51 , B01F27/27 , B01F27/80 , B01F33/821 , B01F35/714 , C01B32/174 , B01F23/56 , B82Y30/00 , B82Y40/00 , Y10T428/30
摘要： Provided are a system for manufacturing dispersion liquid of carbon nanotubes and a method of manufacturing a dispersion liquid of carbon nanotubes using the same. The system includes; a mixing device supplied with solvent and carbon nanotubes, and storing a admixture of the solvent and the carbon nanotubes; a first dispersion device connected to the mixing device, performing a primary dispersion of the carbon nanotubes by an operation of a rotor and a stator, and then performing a secondary dispersion to form bent portions in the carbon nanotubes while discharging the carbon nanotubes through penetration holes of the stator; and a second dispersion device performing a tertiary dispersion of the carbon nanotubes to selectively cut the bent portions of the carbon nanotubes by irradiating a laser when the secondarily dispersed admixture recirculates to the mixing device.
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公开(公告)号：US20210275977A1
公开(公告)日：2021-09-09
申请号：US16944814
申请日：2020-07-31
发明人： Hannah Song , Daehyeon Joung , Sung Hoon Jeong
摘要： Provided are a system for manufacturing dispersion liquid of carbon nanotubes and a method of manufacturing a dispersion liquid of carbon nanotubes using the same. The system includes; a mixing device supplied with solvent and carbon nanotubes, and storing a admixture of the solvent and the carbon nanotubes; a first dispersion device connected to the mixing device, performing a primary dispersion of the carbon nanotubes by an operation of a rotor and a stator, and then performing a secondary dispersion to form bent portions in the carbon nanotubes while discharging the carbon nanotubes through penetration holes of the stator; and a second dispersion device performing a tertiary dispersion of the carbon nanotubes to selectively cut the bent portions of the carbon nanotubes by irradiating a laser when the secondarily dispersed admixture recirculates to the mixing device.
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