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1. 发明授权

US11302913B2 Negative electrode material comprising silicon flakes and preparing method of silicon flakes 有权
公开(公告)号：US11302913B2
公开(公告)日：2022-04-12
申请号：US16082021
申请日：2017-08-18
申请人： LG CHEM, LTD. , UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
发明人： Eui-Yong Hwang , Soo-Jin Park , Jae-Geon Ryu , Jang-Bae Kim , Jong-Hyun Chae , Dong-Ki Hong
IPC分类号： H01M4/00 , H01M4/38 , C01B33/021 , H01M4/133 , H01M4/134 , H01M4/36 , H01M4/02
摘要： The present disclosure relates to a negative electrode material including, as an active material, silicon flakes with a hyperporous structure, represented by the following chemical formula 1: xSi.(1−x)A (1) where 0.5≤x≤1.0, and A is an impurity, and includes at least one compound selected from the group consisting of Al2O3, MgO, SiO2, GeO2, Fe2O3, CaO, TiO2, Na2O K2O, CuO, ZnO, NiO, Zr2O3, Cr2O3 and BaO, and a preparing method of the silicon flakes.

2. 发明申请

US20150125747A1 BINDER SOLUTION FOR ANODE, ACTIVE MATERIAL SLURRY FOR ANODE COMPRISING THE BINDER SOLUTION, ANODE USING THE SLURRY AND ELECTROCHEMICAL DEVICE COMPRISING THE ANODE 有权
标题翻译：用于阳极的粘合剂溶液，包含粘合剂溶液的阳极的活性物质浆料，使用包含阳极的浆料和电化学装置的阳极
公开(公告)号：US20150125747A1
公开(公告)日：2015-05-07
申请号：US14591135
申请日：2015-01-07
申请人： LG Chem, Ltd.
发明人： Ji-Hye Yang , Jang-Bae Kim , Byoung-Bae Lee
IPC分类号： H01M4/62 , H01M4/38 , H01M4/583 , H01M4/56 , H01M4/50 , H01M4/52 , H01M4/54 , H01M10/052 , H01M4/48
CPC分类号： H01M4/622 , H01M4/13 , H01M4/133 , H01M10/052 , Y02E60/122
摘要： The present disclosure relates to a binder solution for an anode, comprising a thermally cross-linkable polymer binder that is cross-linked by heat, and a solvent for dissolving the thermally cross-linkable polymer binder, and exhibiting a concentration of hydrogen ions corresponding to pH 2.5 to pH 4.5; an active material slurry for an anode, comprising the binder solution; an anode using the slurry; and an electrochemical device comprising the anode. The binder solution for an anode according to one aspect of the present disclosure can relieve the volume expansion of an anode active material by the intercalation and disintercalation of lithium during cycles of electrochemical devices to improve the durability of an anode active material layer, thereby enhancing the life characteristics of the electrochemical devices, and also can provide good dispersibility to the active material slurry for an anode, thereby improving the coating stability of an anode active material layer.
摘要翻译：本公开涉及一种用于阳极的粘合剂溶液，其包含通过加热交联的可热交联的聚合物粘合剂和用于溶解可热交联的聚合物粘合剂的溶剂，并且显示出相当于 pH 2.5至pH 4.5; 用于阳极的活性材料浆料，其包含粘合剂溶液; 使用该浆料的阳极; 以及包含阳极的电化学装置。根据本公开一个方面的用于阳极的粘合剂溶液可以通过在电化学装置的循环期间通过锂的插层和脱嵌来减轻阳极活性材料的体积膨胀，以改善阳极活性材料层的耐久性，由此增强电化学装置的寿命特性，并且还可以为阳极的活性物质浆料提供良好的分散性，从而提高阳极活性物质层的涂布稳定性。

3. 发明申请

US20150037672A1 ANODE ACTIVE MATERIAL-CONTAINING SLURRY, ANODE USING THE SLURRY AND ELECTROCHEMICAL DEVICE COMPRISING THE ANODE 有权
标题翻译：阳极活性材料含有浆料，使用包含阳极的浆料和电化学装置的阳极
公开(公告)号：US20150037672A1
公开(公告)日：2015-02-05
申请号：US14518195
申请日：2014-10-20
申请人： LG Chem, Ltd.
发明人： Ji-Hye Yang , Jang-Bae Kim , Byoung-Bae Lee
IPC分类号： H01M4/62 , H01M10/052
CPC分类号： H01M4/622 , H01M4/0404 , H01M4/0471 , H01M4/131 , H01M4/134 , H01M4/1391 , H01M4/1395 , H01M10/052 , H01M2004/027
摘要： The present disclosure relates to an anode active material-containing slurry, an anode using the slurry, and an electrochemical device comprising the anode. More specifically, the present disclosure relates to a slurry comprising an anode active material; a polymer binder comprising styrene butadiene rubber and potassium polyacrylate; a conductive material; and a dispersing medium, an anode using the slurry, and an electrochemical device comprising the anode. The anode active material-containing slurry according to one aspect of the present disclosure can relieve the volume expansion of an anode active material by the intercalation and disintercalation of lithium during cycles of electrochemical devices to improve the durability of an anode active material layer, thereby enhancing the life characteristics of the electrochemical devices, and can form an anode active material layer having a high peeling force even though potassium polyacrylate with a relatively lower weight-average molecular weight is used.
摘要翻译：本公开涉及含负极活性物质的浆料，使用该浆料的阳极和包含该阳极的电化学装置。更具体地，本公开涉及包含阳极活性材料的浆料; 包含苯乙烯丁二烯橡胶和聚丙烯酸钾的聚合物粘合剂; 导电材料; 和分散介质，使用该浆料的阳极和包含该阳极的电化学装置。根据本公开一个方面的含负极活性物质的浆料可以通过在电化学装置的循环期间锂的插入和脱嵌而减轻阳极活性材料的体积膨胀，以提高阳极活性材料层的耐久性，从而增强电化学装置的寿命特性，并且即使使用具有相对较低重均分子量的聚丙烯酸钾，也可以形成具有高剥离力的负极活性物质层。

4. 发明授权

US09577263B2 Anode active material-containing slurry, anode using the slurry and electrochemical device comprising the anode 有权
标题翻译：含阳极活性物质的浆料，使用该浆料的阳极和包含阳极的电化学装置
公开(公告)号：US09577263B2
公开(公告)日：2017-02-21
申请号：US14518195
申请日：2014-10-20
申请人： LG Chem, Ltd.
发明人： Ji-Hye Yang , Jang-Bae Kim , Byoung-Bae Lee
IPC分类号： H01M4/62 , H01M10/052 , H01M4/02 , H01M4/04 , H01M4/131 , H01M4/134 , H01M4/1391 , H01M4/1395
CPC分类号： H01M4/622 , H01M4/0404 , H01M4/0471 , H01M4/131 , H01M4/134 , H01M4/1391 , H01M4/1395 , H01M10/052 , H01M2004/027
摘要： The present disclosure relates to an anode active material-containing slurry, an anode using the slurry, and an electrochemical device comprising the anode. More specifically, the present disclosure relates to a slurry comprising an anode active material; a polymer binder comprising styrene butadiene rubber and potassium polyacrylate; a conductive material; and a dispersing medium, an anode using the slurry, and an electrochemical device comprising the anode. The anode active material-containing slurry according to one aspect of the present disclosure can relieve the volume expansion of an anode active material by the intercalation and disintercalation of lithium during cycles of electrochemical devices to improve the durability of an anode active material layer, thereby enhancing the life characteristics of the electrochemical devices, and can form an anode active material layer having a high peeling force even though potassium polyacrylate with a relatively lower weight-average molecular weight is used.
摘要翻译：本公开涉及含负极活性物质的浆料，使用该浆料的阳极和包含该阳极的电化学装置。更具体地，本公开涉及包含阳极活性材料的浆料; 包含苯乙烯丁二烯橡胶和聚丙烯酸钾的聚合物粘合剂; 导电材料; 和分散介质，使用该浆料的阳极和包含该阳极的电化学装置。根据本公开一个方面的含负极活性物质的浆料可以通过在电化学装置的循环期间锂的插入和脱嵌而减轻阳极活性材料的体积膨胀，以提高阳极活性材料层的耐久性，从而增强电化学装置的寿命特性，并且即使使用具有相对较低重均分子量的聚丙烯酸钾，也可以形成具有高剥离力的负极活性物质层。

5. 发明授权

US09515321B2 Binder solution for anode, active material slurry for anode comprising the binder solution, anode using the slurry and electrochemical device comprising the anode 有权
标题翻译：用于阳极的粘合剂溶液，包含粘合剂溶液的阳极活性材料浆料，使用该浆料的阳极和包含阳极的电化学装置
公开(公告)号：US09515321B2
公开(公告)日：2016-12-06
申请号：US14591135
申请日：2015-01-07
申请人： LG Chem, Ltd.
发明人： Ji-Hye Yang , Jang-Bae Kim , Byoung-Bae Lee
IPC分类号： H01M4/139 , H01M4/62 , H01M10/052 , H01M4/13 , H01M4/133
CPC分类号： H01M4/622 , H01M4/13 , H01M4/133 , H01M10/052 , Y02E60/122
摘要： The present disclosure relates to a binder solution for an anode, comprising a thermally cross-linkable polymer binder that is cross-linked by heat, and a solvent for dissolving the thermally cross-linkable polymer binder, and exhibiting a concentration of hydrogen ions corresponding to pH 2.5 to pH 4.5; an active material slurry for an anode, comprising the binder solution; an anode using the slurry; and an electrochemical device comprising the anode. The binder solution for an anode according to one aspect of the present disclosure can relieve the volume expansion of an anode active material by the intercalation and disintercalation of lithium during cycles of electrochemical devices to improve the durability of an anode active material layer, thereby enhancing the life characteristics of the electrochemical devices, and also can provide good dispersibility to the active material slurry for an anode, thereby improving the coating stability of an anode active material layer.
摘要翻译：本公开涉及一种用于阳极的粘合剂溶液，其包含通过加热交联的可热交联的聚合物粘合剂和用于溶解可热交联的聚合物粘合剂的溶剂，并且显示出相当于 pH 2.5至pH 4.5; 用于阳极的活性材料浆料，其包含粘合剂溶液; 使用该浆料的阳极; 以及包含阳极的电化学装置。根据本公开一个方面的用于阳极的粘合剂溶液可以通过在电化学装置的循环期间通过锂的插层和脱嵌来减轻阳极活性材料的体积膨胀，以改善阳极活性材料层的耐久性，由此增强电化学装置的寿命特性，并且还可以为阳极的活性物质浆料提供良好的分散性，从而提高阳极活性物质层的涂布稳定性。

6. 发明授权

US10923717B2 Lithium ion secondary battery 有权
公开(公告)号：US10923717B2
公开(公告)日：2021-02-16
申请号：US16099616
申请日：2017-11-03
申请人： LG CHEM, LTD.
发明人： Su-Hwan Kim , Jong-Hyun Chae , Jang-Bae Kim , Ji-Hye Yang
IPC分类号： H01M4/48 , H01M4/131 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M4/02
摘要： A secondary battery using a vanadium oxide as a positive electrode active material is provided. The secondary battery is prevented from degradation of capacity by preventing dissolution of vanadium. The vanadium oxide includes secondary particles formed by assemblage of primary particles.

7. 发明授权

US09705154B2 Method for prelithiation, method for fabricating lithium secondary battery comprising the method, and lithium secondary battery fabricated from the fabricating method 有权
公开(公告)号：US09705154B2
公开(公告)日：2017-07-11
申请号：US14504529
申请日：2014-10-02
申请人： LG Chem, Ltd.
发明人： Sang-Kyun Lee , Bok-Kyu Choi , Byoung-Bae Lee , Bong-Hyun Jeong , Kyoung-Ho Kim , Jang-Bae Kim
IPC分类号： H01M10/052 , H01M10/058 , H01M10/42 , H01M10/44
CPC分类号： H01M10/052 , H01M10/058 , H01M10/4242 , H01M10/446 , Y10T29/49108
摘要： The present disclosure relates to a method for prelithiation, and in particular, to a method for prelithiation that predopes lithium into at least one unit cell uniformly in large amounts. According to an aspect of the present disclosure, there is provided a method for prelithiation including an preparing at least one unit cell, the unit cell comprising a cathode, an anode, and a separator interposed between the cathode and the anode, disposing the prepared at least one unit cell in a reaction tank, and connecting electrodes having the same polarity, adding an electrolyte solution into the reaction tank, disposing a lithium metal plate in the electrolyte solution, and connecting the lithium metal plate to the anode, and doping the anode.

8. 发明申请

US20150017543A1 METHOD FOR PRELITHIATION, METHOD FOR FABRICATING LITHIUM SECONDARY BATTERY COMPRISING THE METHOD, AND LITHIUM SECONDARY BATTERY FABRICATED FROM THE FABRICATING METHOD 有权
标题翻译：用于制造方法，用于制造包含该方法的锂二次电池的方法和从制造方法制成的锂二次电池
公开(公告)号：US20150017543A1
公开(公告)日：2015-01-15
申请号：US14504529
申请日：2014-10-02
申请人： LG Chem, Ltd.
发明人： Sang-Kyun Lee , Bok-Kyu Choi , Byoung-Bae Lee , Bong-Hyun Jeong , Kyoung-Ho Kim , Jang-Bae Kim
IPC分类号： H01M4/04 , H01M10/052 , H01M4/38
CPC分类号： H01M10/052 , H01M10/058 , H01M10/4242 , H01M10/446 , Y10T29/49108
摘要： The present disclosure relates to a method for prelithiation, and in particular, to a method for prelithiation that predopes lithium into at least one unit cell uniformly in large amounts. According to an aspect of the present disclosure, there is provided a method for prelithiation including an preparing at least one unit cell, the unit cell comprising a cathode, an anode, and a separator interposed between the cathode and the anode, disposing the prepared at least one unit cell in a reaction tank, and connecting electrodes having the same polarity, adding an electrolyte solution into the reaction tank, disposing a lithium metal plate in the electrolyte solution, and connecting the lithium metal plate to the anode, and doping the anode.
摘要翻译：本公开内容涉及一种用于预锂化的方法，特别是涉及将锂均匀均匀地预测锂的预锂化方法。根据本公开的一个方面，提供了一种用于预锂化的方法，包括制备至少一个单元电池，所述单元电池包括阴极，阳极和插入在所述阴极和所述阳极之间的隔膜，反应槽中的至少一个晶胞，以及具有相同极性的连接电极，将电解质溶液加入到反应槽中，在电解液中设置锂金属板，并将锂金属板连接到阳极，并将阳极掺杂。

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