Lg Energy Solution, Ltd.

Lg Chem, Ltd

Byung Joon Chae

Wang Mo Jung

Yeong Rae Chang

Jae Young Kim

Jin Seok Byun

Sin Young Park

Bo Ram Lee

Seul Ki Kim

Tae Gon Kim

Dae Jin Lee

Hak Yoon Kim

Yun U Shin

Kwang Woo Yoon

Se Hui Sohn

Jung Hoon Han

Ji Yeon Byeon

Yongjun Kim

Byung Hee Choi

Jin Young Hwang

Jong Seok Jeong

Jonggeol Kim

A hard coating film comprising a base layer including: a polymer binder resin; first inorganic particles dispersed in the polymer binder resin and having an average particle size of 5 nm or more and less than 70 nm; and second inorganic particles which are dispersed in the polymer binder resin and have an average particle size of 70 nm to 150 nm is provided.

Hard coating film

A method for analyzing a swelling behavior of a lithium secondary battery includes: (S1) installing a detachable pressurizing holder for fixing a battery sample and a charge/discharge cable connected with an external charging/discharging device to an X-ray CT (computed tomography) imaging equipment; (S2) inserting the battery sample into the pressurizing holder, contacting an electrode lead of the battery sample with a terminal of the charge/discharge cable, and then operating the external charging/discharging device to perform charging and discharging; and (S3) while rotating the battery sample during charging and discharging of the battery sample, irradiating and scanning the X-ray on the battery sample at an angle ranging from &#x2212;10&#xb0; to 10&#xb0; to obtain a 3D image, and then measuring a change in the thickness of the electrode inside the battery sample from the 3D image.

Method and system for analyzing swelling behavior of lithium secondary battery

The present disclosure relates to a method for analyzing an electrode for a battery, which has the advantage of being capable of more easily distinguishing between the constituent materials of the electrode such as the electrode active material, the conductive material, and the pores, by using scanning spreading resistance microscopy.

Battery electrode analysis method

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Daejeon, South Korea

Byung Joon Chae