Lg Chem, Ltd

Hye-Won Jeong

Ji-Won Jeong

Kyoung-Hoon Kim

Seung-Yup Lee

Heon Kim

Sung-Ho Chun

Jae-Hyun Lee

Su-Rim Lee

Kyung-Jun Kim

Hye-Ran Seong

Sang-Kook Kim

Min-Young Lim

Sung-Joon Oh

Su-Hyun Kim

Dong-Hyun Oh

Dmitry Kravchuk

Jung-Ho Jo

Yun-Jeong Lee

Hee-Jin Lee

Byung-Hyun Lee

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(X) 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.

Method for evaluating identity of polymers and system using same

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&#xb0; 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.

Cathode having improved safety and lithium secondary battery including the same

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.

Method for evaluating monomers having effect on copolymer characteristics, and system using same

The present invention relates to a novel cyclic olefin compound, a polymer including the cyclic olefin compound, a liquid crystal alignment film including the polymer, and a liquid crystal display device including the liquid crystal alignment film. Since the polymer includes the cyclic olefin compound as a main chain, the thermal stability is excellent and the photoreactive speed is high. Accordingly, the production time can be reduced, the production cost can be reduced, and the anchoring force of the liquid crystal can be increased because the alignment property is stabilized due to the curing.

Cyclic olefins compounds, polymers comprising the same and liquid crystal alignment films including the polymers

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Daejeon, South Korea

Hye-Won Jeong