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公开(公告)号：EP3370279A1
公开(公告)日：2018-09-05
申请号：EP16871047.3
申请日：2016-11-30
申请人： LG Chem, Ltd.
发明人： CHOI, Young Geun , KIM, Hyo Sik , BAEK, Joo Yul , OH, Song Taek
IPC分类号： H01M4/13 , H01M4/62 , H01M2/10 , H01M10/052
CPC分类号： H01M4/625 , B82Y30/00 , B82Y40/00 , C01B32/158 , H01M4/0404 , H01M4/0416 , H01M4/131 , H01M4/1391 , H01M4/364 , H01M4/366 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2004/021 , H01M2004/028 , Y10S977/742 , Y10S977/842 , Y10S977/948
摘要： Provided are a positive electrode for a secondary battery which includes a positive electrode collector, a porous positive electrode active material layer disposed on a surface of the positive electrode collector and including a positive electrode active material and first carbon nanotubes, and a conductive layer disposed on a surface of the positive electrode active material layer, wherein the conductive layer includes a porous network structure formed by a plurality of second carbon nanotubes and has a porosity equal to or greater than a porosity of the positive electrode active material layer + 10 vol%, and a secondary battery including the same.
The positive electrode for a secondary battery according to the present invention may significantly reduce charge transfer resistance, while keeping material resistance in the active material layer low, by forming an electrical network across the surface and inside of the positive electrode active material layer using the carbon nanotubes having excellent strength characteristics as well as excellent electrical conductivity, and thus, output characteristics of the battery may be significantly improved.-
公开(公告)号：EP3503257A1
公开(公告)日：2019-06-26
申请号：EP18764216.0
申请日：2018-03-08
申请人： LG Chem, Ltd.
发明人： JUNG, Hye Ran , CHOI, Young Geun , OH, Song Taek
IPC分类号： H01M2/16 , H01M2/18 , H01M10/42 , H01M10/058 , H01M10/052
摘要： The present invention relates to a separator for a lithium secondary battery, which includes a porous substrate, and a lithium metal layer formed on one side of the porous substrate, wherein the lithium metal layer is formed on an outer circumferential surface of the porous substrate and has a window frame shape with an empty interior, and a lithium secondary battery including the same.
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4.发明公开
公开(公告)号：EP3370278A1
公开(公告)日：2018-09-05
申请号：EP16860292.8
申请日：2016-10-28
申请人： LG Chem, Ltd.
CPC分类号： H01M4/505 , H01M4/0404 , H01M4/0435 , H01M4/131 , H01M4/1391 , H01M4/525 , H01M4/583 , H01M4/624 , H01M10/052 , H01M10/0569 , H01M2004/021 , H01M2004/027 , H01M2004/028 , H01M2300/0037
摘要： The present invention relates to a positive electrode for a secondary battery, which includes a positive electrode collector, and a positive electrode material mixture layer coated on at least one side of the positive electrode collector, wherein the positive electrode material mixture layer includes a positive electrode active material, a conductive agent, a binder, and bimodal pores composed of first pores and second pores which have different maximum diameters, and, in this case, the conductive agent and the positive electrode active material are included at a volume ratio (K 1 ) of 0.08:1 to 0.32:1, wherein a volume ratio of the conductive agent to the total pores is in a range of 0.1:1 to 0.33:1, a porosity is in a range of 30 vol% to 45 vol%, the maximum diameters of the first pores and the second pores are less than 1 µm, and an average diameter ratio (k) of the first pores to the second pores is in a range of 0.13:1 to 0.27:1, a method of preparing the same, and a secondary battery including the positive electrode.
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5.发明公开METHOD FOR MANUFACTURING ELECTRODE COLLECTOR FOR SECONDARY BATTERY AND ELECTRODE INCLUDING ELECTRODE COLLECTOR MANUFACTURED BY SAME METHOD 审中-公开制造二次电池用电极集电体的方法及包括使用该方法制造的电极集电体的电极
公开(公告)号：EP3322010A2
公开(公告)日：2018-05-16
申请号：EP17770534.0
申请日：2017-03-15
申请人： LG Chem, Ltd.
发明人： BAEK, Joo Yul , OH, Song Taek , CHOI, Young Geun
IPC分类号： H01M4/66 , H01M4/75 , H01M4/04 , H01M4/13 , H01M10/0525
摘要： The present invention relates to a method of manufacturing an electrode current collector for a secondary battery and an electrode including an electrode current collector manufactured using the method. In particular, provided herein are a method of manufacturing an electrode current collector for a secondary battery which includes forming a CNT coating layer on a surface of an electrode current collector to increase electrical conductivity, and an electrode including an electrode current collector manufactured according to the method.
摘要翻译： 本发明涉及制造用于二次电池的电极集流体的方法和包括使用该方法制造的电极集流体的电极。 特别地，本发明提供一种制造用于二次电池的电极集流体的方法，其包括在电极集流体的表面上形成CNT涂层以增加电导率，以及包括根据 方法。
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公开(公告)号：EP2874227B1
公开(公告)日：2017-09-06
申请号：EP13857167.4
申请日：2013-11-21
申请人： LG Chem, Ltd.
发明人： CHOI, Young Geun , CHUNG, Geun Chang , YOON, Yourim , YOON, Seung Jae , JUNG, Jong Mo , CHAE, Jonghyun
CPC分类号： H01M4/5825 , H01M4/136 , H01M4/366 , H01M4/587 , H01M4/625 , H01M10/052 , H01M10/0525 , H01M2004/021 , H01M2220/20 , Y02E60/122
摘要： Disclosed is a lithium secondary battery including (i) a cathode active material including a lithium metal phosphate according to Formula 1 below; and (ii) an anode active material including amorphous carbon, €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒLi 1+a M(PO 4-b )X b €ƒ€ƒ€ƒ€ƒ€ƒ(1) wherein M is at least one selected from metals of Groups II to XII, X is at least one selected from F, S and N, -0.5‰¤a‰¤+0.5, and 0‰¤b‰¤0.1.
摘要翻译： 本发明公开了一种锂二次电池，其包含（i）包含根据下式1的锂金属磷酸盐的正极活性材料; 和（ii）包含无定形碳的阳极活性材料，Li + 1 M（PO 4-b）X b （1）其中M是选自II至XII族金属中的至少一种，X是选自F，S和N中的至少一种，-0.5‰‰+ 0.5和0‰〃b‰。
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公开(公告)号：EP2876722B1
公开(公告)日：2016-11-16
申请号：EP13856658.3
申请日：2013-11-22
申请人： LG Chem, Ltd.
发明人： YOON, Yourim , JUNG, Jong Mo , CHAE, Jonghyun , LEE, Chul Haeng , CHUNG, Geun Chang , CHOI, Young Cheol , CHOI, Young Geun , YOON, Seung Jae
IPC分类号： H01M4/58 , H01M10/0569 , H01M10/0525 , H01M4/587 , H01M4/36 , H01M4/136
CPC分类号： H01M10/0569 , H01M4/136 , H01M4/366 , H01M4/5825 , H01M4/583 , H01M4/587 , H01M4/625 , H01M10/052 , H01M10/0525 , H01M10/0568 , H01M2220/20 , H01M2300/0028 , H01M2300/0037 , Y02E60/122 , Y02T10/7011
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公开(公告)号：EP3322010B1
公开(公告)日：2020-01-08
申请号：EP17770534.0
申请日：2017-03-15
申请人： LG Chem, Ltd.
发明人： BAEK, Joo Yul , OH, Song Taek , CHOI, Young Geun
IPC分类号： B82Y30/00 , B82Y40/00 , H01M4/02 , C01B32/174 , H01M4/66 , H01M4/75 , H01M4/04 , H01M4/13 , H01M10/0525
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公开(公告)号：EP3370279B1
公开(公告)日：2020-01-01
申请号：EP16871047.3
申请日：2016-11-30
申请人： LG Chem, Ltd.
发明人： CHOI, Young Geun , KIM, Hyo Sik , BAEK, Joo Yul , OH, Song Taek
IPC分类号： H01M4/13 , H01M4/62 , H01M2/10 , H01M10/052 , B82Y30/00 , B82Y40/00 , H01M4/04 , H01M4/131 , H01M4/1391 , H01M4/36 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M4/02 , C01B32/158
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10.发明公开
公开(公告)号：EP3335260A1
公开(公告)日：2018-06-20
申请号：EP17831258.3
申请日：2017-07-07
申请人： LG Chem, Ltd.
发明人： LEE, Sol Nip , CHOI, Young Geun , OH, Song Taek
IPC分类号： H01M4/139 , H01M4/04 , H01M4/62 , H01M4/13 , H01M10/0525
CPC分类号： H01M4/04 , H01M4/0404 , H01M4/0471 , H01M4/139 , H01M4/36 , H01M4/366 , H01M4/622 , H01M10/0525 , H01M2004/021 , H01M2220/10 , H01M2220/20 , Y02E60/122
摘要： The present invention relates to a method of preparing an electrode for a lithium secondary battery and an electrode for a lithium secondary battery prepared thereby, wherein, since the method may suppress the migration of a binder and may uniformly control the distribution of the binder in the electrode by forming a plurality of negative electrode active material layers and allowing a drying condition of each of the negative electrode active material layers to be different, the method may improve life characteristics by improving adhesion between a negative electrode active material and a current collector and may improve charging characteristics by reducing interfacial resistance of the negative electrode.
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