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公开(公告)号：US20170299569A1
公开(公告)日：2017-10-19
申请号：US15515899
申请日：2015-12-08
申请人： LG Chem, Ltd.
发明人： Seung-Yup Lee , Ji-Won Jeong , Hye-Won Jeong , Kyoung-Hoon Kim
摘要： This invention relates to a method of evaluating the identity of polymers and a system using the same, and more particularly to a novel method of evaluating the identity of polymers, wherein the identity of multiple polymers, rather than just one polymer, can be determined using only information about structures of the polymers, without the need to determine the characteristics of synthesized polymers through real-world experimentation. In order to evaluate the identity of polymers, the identity index PohoFactor(Xi) for each of target polymers is developed and used, and the identity of polymers can be accurately determined on a quantitative basis by evaluating correlations between the identity indices for all polymers, the identity of which is to be determined.
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2.发明授权公开(公告)号：US10338054B2
公开(公告)日：2019-07-02
申请号：US15514125
申请日：2015-12-08
申请人： LG Chem, Ltd.
发明人： Seung-Yup Lee , Hye-Won Jeong , Ji-Won Jeong , Kyoung-Hoon Kim
摘要： This invention relates to a method of evaluating monomers having an effect on copolymer characteristics and a system using the same, and particularly to a novel method of evaluating the magnitude of the effect of monomers on copolymer characteristics, which cannot be evaluated using existing methods. The method of evaluating monomers having an effect on copolymer characteristics and the system using the same are innovative because the extent of changes in copolymer characteristics can be predicted at the monomer level by quantitatively evaluating the effect of the monomers on the copolymer characteristics, taking into consideration the kind or linkage type of monomers.
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公开(公告)号：US20190088950A1
公开(公告)日：2019-03-21
申请号：US16086339
申请日：2017-03-31
申请人： LG Chem, Ltd.
发明人： Su-Rim Lee , Su-Hyun Kim , Hye-Won Jeong , Jae-Hyun Lee
IPC分类号： H01M4/62 , H01M4/36 , H01M10/42 , H01M10/0525
摘要： The present disclosure relates to a cathode including a cathode active material and poly(amic acid). When the lithium secondary battery including the cathode is in an abnormal operation range of 160° C. or higher, condensation reaction of poly(amic acid) occurs to form polyimide. The polyimide surrounds cathode active material particles in the form of a coating film and prevents transport of lithium ions and electrons to interrupt current flow, and inhibits abnormal heat emission and thermal runaway or combustion caused by additional reactions.
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公开(公告)号：US11029305B2
公开(公告)日：2021-06-08
申请号：US15515899
申请日：2015-12-08
申请人： LG Chem, Ltd.
发明人： Seung-Yup Lee , Ji-Won Jeong , Hye-Won Jeong , Kyoung-Hoon Kim
摘要： This invention relates to a method of evaluating the identity of polymers and a system using the same, and more particularly to a novel method of evaluating the identity of polymers, wherein the identity of multiple polymers, rather than just one polymer, can be determined using only information about structures of the polymers, without the need to determine the characteristics of synthesized polymers through real-world experimentation. In order to evaluate the identity of polymers, the identity index PohoFactor(Xi) for each of target polymers is developed and used, and the identity of polymers can be accurately determined on a quantitative basis by evaluating correlations between the identity indices for all polymers, the identity of which is to be determined.
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公开(公告)号：US10903497B2
公开(公告)日：2021-01-26
申请号：US16086339
申请日：2017-03-31
申请人： LG Chem, Ltd.
发明人： Su-Rim Lee , Su-Hyun Kim , Hye-Won Jeong , Jae-Hyun Lee
摘要： The present disclosure relates to a cathode including a cathode active material and poly(amic acid). When the lithium secondary battery including the cathode is in an abnormal operation range of 160° C. or higher, condensation reaction of poly(amic acid) occurs to form polyimide. The polyimide surrounds cathode active material particles in the form of a coating film and prevents transport of lithium ions and electrons to interrupt current flow, and inhibits abnormal heat emission and thermal runaway or combustion caused by additional reactions.
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6.发明申请公开(公告)号：US20170307585A1
公开(公告)日：2017-10-26
申请号：US15514125
申请日：2015-12-08
申请人： LG Chem, Ltd.
发明人： Seung-Yup Lee , Hye-Won Jeong , Ji-Won Jeong , Kyoung-Hoon Kim
CPC分类号： G01N33/442 , C08G73/1042 , C08G73/1078 , G16C20/30
摘要： This invention relates to a method of evaluating monomers having an effect on copolymer characteristics and a system using the same, and particularly to a novel method of evaluating the magnitude of the effect of monomers on copolymer characteristics, which cannot be evaluated using existing methods. The method of evaluating monomers having an effect on copolymer characteristics and the system using the same are innovative because the extent of changes in copolymer characteristics can be predicted at the monomer level by quantitatively evaluating the effect of the monomers on the copolymer characteristics, taking into consideration the kind or linkage type of monomers.
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