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1. 发明公开

EP3355388A1 ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME 有权转让
公开(公告)号：EP3355388A1
公开(公告)日：2018-08-01
申请号：EP16849003.5
申请日：2016-09-23
申请人： LG Chem, Ltd.
发明人： KIM, Hyun Chul , LEE, Yong Ju , KIM, Eun Kyung
IPC分类号： H01M4/36 , H01M4/38 , H01M4/587 , H01M4/134 , H01M10/052
CPC分类号： H01M4/134 , C01B33/023 , H01M4/366 , H01M4/382 , H01M4/386 , H01M4/48 , H01M4/483 , H01M4/583 , H01M4/625 , H01M10/052 , H01M10/0525 , H01M2004/027
摘要： The present specification relates to a negative electrode active material including an amorphous silicon-based composite represented by SiO a (0

2. 发明公开

EP3322005A1 NEGATIVE ELECTRODE ACTIVE MATERIAL AND SECONDARY BATTERY INCLUDING SAME 有权转让
标题翻译：负极活性物质和包含该物质的二次电池
公开(公告)号：EP3322005A1
公开(公告)日：2018-05-16
申请号：EP16855803.9
申请日：2016-10-17
申请人： LG Chem, Ltd.
发明人： CHOI, Jung Hyun , LEE, Yong Ju , KIM, Eun Kyung , KIM, Hyun Chul
IPC分类号： H01M4/36 , H01M4/587 , H01M4/38 , H01M2/10 , H01M10/052 , H01M4/133 , H01M4/134 , H01M4/1393 , H01M4/1395 , H01M10/0525 , H01M4/62
CPC分类号： H01M4/587 , H01M4/133 , H01M4/134 , H01M4/1393 , H01M4/1395 , H01M4/364 , H01M4/366 , H01M4/386 , H01M4/622 , H01M4/625 , H01M10/052 , H01M2220/20 , Y02E60/122
摘要： The present invention relates to a negative electrode active material and a secondary battery including the same, and specifically, provides a negative electrode active material particle including a core, which includes a carbon-based active material and an oxygen functional group, and a shell, which surrounds the core and includes a silicon-based active material. The negative electrode active material particles according to the present invention include an oxygen functional group such that a silicon-based active material may adhere to the surface of a carbon-based active material. The oxygen function group, being negatively charged due to the highly electronegative oxygen, pulls in the positively charged silicon atoms of the silicon-based active material via electrostatic attraction, and thus the silicon-based active material may be strongly adhered with the carbon-based active material. Moreover, since oxygen functional groups are bonded to 2.0 to 4.0% of the total number of covalently bondable sites on the outermost carbon atoms on the surface of the carbon-based active material, it is possible for the conductive properties of the negative electrode active material particle to not be degraded by the oxygen functional groups.
摘要翻译：本发明涉及负极活性物质及具备该负极活性物质的二次电池，具体而言，提供一种负极活性物质粒子，该负极活性物质粒子含有包含碳系活性物质和氧官能团的核以及壳，其围绕核心并包括硅基活性材料。根据本发明的负极活性物质颗粒包含氧官能团，使得硅基活性物质可以粘附到碳基活性物质的表面。由于高电负性的氧而带负电荷的氧官能团通过静电引力吸引硅基活性材料的带正电的硅原子，因此硅基活性材料可强烈地与基于碳的活性材料粘附活性物质。另外，由于氧官能团与碳系活性物质表面的最外层的碳原子上的共价键合点的总数的2.0〜4.0％键合，所以能够使负极活性物质颗粒不被氧官能团降解。

3. 发明授权

EP3355388B1 ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME 有权转让
公开(公告)号：EP3355388B1
公开(公告)日：2020-07-29
申请号：EP16849003.5
申请日：2016-09-23
申请人： LG Chem, Ltd.
发明人： KIM, Hyun Chul , LEE, Yong Ju , KIM, Eun Kyung
IPC分类号： H01M4/36 , H01M4/38 , H01M4/587 , H01M4/134 , H01M10/052 , H01M4/48 , H01M4/583 , H01M4/02 , C01B33/023 , H01M4/62 , H01M10/0525

4. 发明公开

EP2905832A1 NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PREPARING SAME 有权转让
标题翻译：锂二次电池用负极活性材料及其制备方法
公开(公告)号：EP2905832A1
公开(公告)日：2015-08-12
申请号：EP14853184.1
申请日：2014-10-31
申请人： LG Chem, Ltd.
发明人： KIM, Hyun Chul , LEE, Yong Ju , KIM, Eun Kyung
IPC分类号： H01M4/48 , H01M4/38 , H01M4/13 , H01M10/052 , H01M4/134 , H01M4/36 , C01B33/023
CPC分类号： H01M4/48 , C01B33/023 , H01M4/13 , H01M4/364 , H01M4/386 , H01M4/483 , H01M10/052 , H01M10/0525 , H01M2220/30
摘要： Provided are an anode active material for a lithium secondary battery including a silicon-based composite formed of silicon (Si) and crystalline SiO 2 , wherein the Si and crystalline SiO 2 are in the form of grains, a method of preparing the same, and a lithium secondary battery including the anode active material.
Since an anode active material according to an embodiment of the present invention includes a silicon-based composite including Si and SiO 2 in a grain state and the SiO 2 is crystalline SiO 2 , the reaction between amorphous SiO 2 and lithium in an electrolyte may be excluded. Thus, since the crystalline SiO 2 is included in the silicon-based composite, excellent capacity characteristics of a secondary battery may be maintained and initial efficiency and life characteristics may be improved when the silicon-based composite is used as an anode active material.
摘要翻译：本发明提供一种锂二次电池用负极活性物质，其包含由硅（Si）和晶体SiO 2形成的硅基复合物，其中所述Si和晶体SiO 2为晶粒形式，其制备方法和锂包含负极活性物质的二次电池。由于根据本发明实施方式的负极活性材料包括含有处于晶粒状态的Si和SiO 2的硅基复合材料并且SiO 2是晶态SiO 2，因此可以排除非晶SiO 2与电解质中锂之间的反应。因此，由于硅基复合物中包含结晶SiO 2，因此当使用硅基复合物作为阳极活性材料时，可以保持二次电池的优异的容量特性并且可以改善初始效率和寿命特性。

5. 发明公开

EP2879216A1 POROUS SILICON-BASED ANODE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY CONTAINING SAME 有权转让
标题翻译： PORÖSESSILICIUMBASIERTES别墅在LITHIUMSEKUNDÄRBATTERIEDAMIT
公开(公告)号：EP2879216A1
公开(公告)日：2015-06-03
申请号：EP14828431.8
申请日：2014-09-16
申请人： LG Chem, Ltd.
发明人： LEE, Mi Rim , KIM, Hyun Chul , KIM, Eun Kyung , LEE, Yong Ju , YOO, Jung Woo
IPC分类号： H01M4/587 , H01M4/583 , H01M4/134 , H01M10/052
CPC分类号： H01M4/386 , H01M4/133 , H01M4/134 , H01M4/136 , H01M4/364 , H01M4/58 , H01M4/5825 , H01M4/587 , H01M4/625 , H01M10/052 , H01M2004/021 , H01M2004/027 , Y02T10/7011
摘要： Provided is an active material for negative electrode including porous silicon-based particles and carbon particles, wherein the carbon particles include fine carbon particles and coarse carbon particles respectively having different average particle diameters.
Since an active material for negative electrode according to an embodiment of the present invention includes porous silicon-based particles as well as fine and coarse carbon particles respectively having different average particle diameters, the contact between the porous silicon-based particles and the carbon particles may be increased. As a result, lifetime characteristics of a lithium secondary battery may be further improved.
摘要翻译：本发明提供一种包含多孔硅基颗粒和碳颗粒的负极活性材料，其中碳颗粒包括分别具有不同平均粒径的细碳颗粒和粗碳颗粒。由于根据本发明的实施方案的负极活性材料包括多孔硅基颗粒以及分别具有不同平均粒径的细和粗碳颗粒，多孔硅基颗粒与碳颗粒之间的接触可以增加。结果，可以进一步提高锂二次电池的寿命特性。

6. 发明授权

EP3322005B1 NEGATIVE ELECTRODE ACTIVE MATERIAL AND SECONDARY BATTERY INCLUDING SAME 有权转让
公开(公告)号：EP3322005B1
公开(公告)日：2019-09-11
申请号：EP16855803.9
申请日：2016-10-17
申请人： LG Chem, Ltd.
发明人： CHOI, Jung Hyun , LEE, Yong Ju , KIM, Eun Kyung , KIM, Hyun Chul
IPC分类号： H01M4/36 , H01M4/587 , H01M4/38 , H01M2/10 , H01M10/052 , H01M4/133 , H01M4/134 , H01M4/1393 , H01M4/1395 , H01M10/0525 , H01M4/62

7. 发明公开

EP3352260A1 SILICON-BASED ACTIVE MATERIAL-POLYMER COMPOSITE AND PREPARATION METHOD THEREFOR 审中-实审转让
公开(公告)号：EP3352260A1
公开(公告)日：2018-07-25
申请号：EP17763573.7
申请日：2017-03-08
申请人： LG Chem, Ltd.
发明人： JO, Rae Hwan , KIM, Eun Kyung , LEE, Yong Ju , PARK, Su Jin , KIM, Hyun Chul , CHOI, Jung Hyun
IPC分类号： H01M4/38 , H01M4/60 , H01M10/052
CPC分类号： H01M4/134 , C01B33/021 , H01M4/1395 , H01M4/362 , H01M4/364 , H01M4/386 , H01M4/623 , H01M4/624 , H01M10/052
摘要： The present invention relates to silicon-based active material-polymer composite which is secondary particles in which silicon-based particles as primary particles and conductive polymer particles having a modulus of elasticity of 10 Pa to 100 Pa at a temperature of 20°C to 40°C are uniformly mixed.

8. 发明授权

EP2879216B1 POROUS SILICON-BASED ANODE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY CONTAINING SAME 有权转让
公开(公告)号：EP2879216B1
公开(公告)日：2019-02-27
申请号：EP14828431.8
申请日：2014-09-16
申请人： LG Chem, Ltd.
发明人： LEE, Mi Rim , KIM, Hyun Chul , KIM, Eun Kyung , LEE, Yong Ju , YOO, Jung Woo
IPC分类号： H01M4/587 , H01M4/38 , H01M4/36 , H01M10/052 , H01M4/62

9. 发明公开

EP3355389A1 ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME 有权转让
公开(公告)号：EP3355389A1
公开(公告)日：2018-08-01
申请号：EP16849006.8
申请日：2016-09-23
申请人： LG Chem, Ltd.
发明人： KIM, Hyun Chul , LEE, Yong Ju , KIM, Eun Kyung
IPC分类号： H01M4/36 , H01M4/38 , H01M4/587 , H01M4/134 , H01M10/052 , H01M4/62
CPC分类号： H01M4/366 , B01J13/04 , B01J13/20 , H01M4/133 , H01M4/134 , H01M4/36 , H01M4/38 , H01M4/386 , H01M4/483 , H01M4/587 , H01M4/625 , H01M10/052 , H01M10/0525
摘要： The present invention relates to anode active material with a bimodal pore structure comprising nanopores and mesopores, and comprising: an amorphous silicon composite expressed by SiO a where a is 0

10. 发明授权

EP2762448B1 METHOD FOR PREPARING SILICON OXIDE 有权转让
标题翻译：制备氧化硅的方法
公开(公告)号：EP2762448B1
公开(公告)日：2018-02-21
申请号：EP13847815.1
申请日：2013-10-15
申请人： LG Chem, Ltd.
发明人： JUNG, Sang Yun , JEONG, Han Nah , PARK, Cheol Hee , KIM, Hyun Chul , LIM, Byung Kyu
IPC分类号： C01B33/113 , H01M4/48 , H01M10/05 , H01M10/052 , C01B33/18 , H01B1/08 , H01M4/131 , H01M4/485
CPC分类号： H01B1/08 , C01B33/113 , C01B33/181 , H01M4/131 , H01M4/48 , H01M4/483 , H01M4/485 , H01M10/05 , H01M10/052
摘要： Provided is a method of manufacturing silicon oxide by which an amount of oxygen of the silicon oxide may be controlled. The method of manufacturing silicon oxide may include mixing silicon and silicon dioxide to be included in a reaction chamber, depressurizing a pressure of the reaction chamber to obtain a high degree of vacuum while increasing a temperature in the reaction chamber to a reaction temperature, and reacting the mixture of silicon and silicon dioxide in a reducing atmosphere.

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