Lg Chem, Ltd

Sk Innovation Co., Ltd.

Electronics and Telecommunications Research Institute

Sk Energy Co., Ltd.

Korea Advanced Institute of Science and Technology

Lg Energy Solution, Ltd.

Korea Institute of Science and Technology

Seong Ho Lee

Minchul Jang

Byoungkuk Son

Da Young Sung

Young Seek Yoon

Yu Mi Kim

Gi Su Park

Min Seo Kim

Doo Kyung Yang

Seung Hoon Oh

Min Gu Kang

Hee Jung Jeon

Hee Soo Kim

Junghun Choi

Kook Hyun Han

Young Min Chung

Ok Youn Kim

Tae Woo Woo

Il Su Kim

Jung In Yeon

Keun Seob Choi

Hong Kyu Park

Haeshin Lee

Jung Hwan Kim

Intae Park

Changhun Park

Ki Young Kwon

Jae Chul Kim

Yoon Seop Chang

Byounghyo Jung

Cher Hee Park

Hyunsoo Lee

Sun Jin Kim

Kiyoung Kwon

Woo Jin Lee

Sung Hwan Kim

Joong Jin Han

Min Chul Jang

Youngjea Kim

Yong Woo Kim

Bong Soo Kim

In Ho Cho

Sun Mi Lee

Hyungsam Choi

Jong Mo Jung

Young Eun Cheon

Dong Keun Kwon

Sung Woong Shin

Jeong Kyu Kim

Yoon Jae Yim

Suhwan Kim

Yoon-Seop Chang

Sam Ryong Park

In Tae Park

Byoung Kuk Son

Seungpyo Jeong

Chang Rak Yoon

Kyung Ok Kim

Young Woong Suh

Sin Young Kang

Young Soon Um

Joonmyun Cho

Young Jae Lim

Ki Jung Lee

Hak Cheol Kim

Hong Seok Jung

YoungHo Suh

Gi Ho Goh

Hyung Woong Ahn

Byoung In Sang

Jong Hee Song

A positive electrode for a lithium-sulfur secondary battery includes a positive electrode active material layer having an intaglio pattern formed therein. A method for manufacturing the same, and a lithium-sulfur secondary battery including the same are also provided. The positive electrode active material layer has a porosity of 50 to 65%. The intaglio pattern has a width of 1 to 100 μm and a depth of 30 to 99% based on the thickness of the positive electrode active material layer. The volumetric ratio of the positive electrode active material layer and the intaglio pattern is 4:1 to 40:1. When the positive electrode is applied to a lithium-sulfur secondary battery, the energy density per unit volume can be remarkably improved.

Positive electrode for lithium-sulfur secondary battery having pattern, manufacturing method therefor, and lithium-sulfur secondary battery including same

A method for enhancing a lifetime of a lithium secondary battery including manufacturing a battery by injecting an electrolyte liquid to an electrode assembly-embedded battery; and charging and discharging the manufactured battery; and additionally injecting an electrolyte liquid earlier than half a cycle point with respect to the number of charge and discharge cycles reaching discharge capacity of 80% compared to initial capacity is provided.

Method for improving lifespan of lithium secondary battery

A binder for a lithium-sulfur battery, and a positive electrode and a lithium-sulfur battery including the same, and in particular, to a binder for a lithium-sulfur battery including lithium polyacrylate and polyvinyl alcohol. By including two types of specific polymers, the binder for a lithium-sulfur battery is capable of enhancing electrochemical properties and stability of a positive electrode, and thereby enhancing capacity and lifetime properties of a lithium-sulfur battery.

Binder for lithium-sulfur battery, positive electrode comprising same, and lithium-sulfur battery

Provided is a porous lithium composite phosphate-based compound containing lithium and having open pores formed in primary particles. As the open pores are formed in the primary particles themselves, a contact area between an electrolyte and the lithium composite phosphate-based compound is maximized, and low conductivity is compensated for, such that a diffusion rate of lithium ions is remarkably increased, and when the lithium composite phosphate-based compound is used as an active material of a secondary battery, the secondary battery may be charged and discharged at a high speed. Additionally, there are advantages in that an electrode density may be significantly increased in addition to the increase in the diffusion rate of the lithium ions, and charge and discharge cycle characteristics may be significantly stable.

Lithium composite phosphate-based compound and preparation method therefor

The present application relates to a cathode for a lithium-sulfur battery and a method of preparing the same. More specifically, the cathode for a lithium-sulfur battery according to an exemplary embodiment of the present application includes: a cathode active part including a sulfur-carbon composite; and a cathode coating layer including an amphiphilic polymer provided on at least one portion of a surface of the cathode active part and including a hydrophilic portion and a hydrophobic portion.

Cathode for lithium-sulfur battery and manufacturing method therefor

The present specification relates to an anode, a lithium secondary battery including the same, a battery module including the lithium secondary battery, and a method for manufacturing an anode.

Anode, lithium secondary battery comprising same, battery module comprising the lithium secondary battery, and method for manufacturing anode

The present invention relates to a separator for a lithium-sulfur battery having a composite coating layer including polydopamine, and a method for preparing the same, and in particular, to a lithium-sulfur battery suppressing lithium polysulfide elution by using a composite coating layer including polydopamine and a conductive material on one surface of a separator. In the lithium-sulfur battery according to the present invention, a porous structure of polydopamine adsorbs lithium polysulfide eluted from a positive electrode preventing elution and diffusion, and by providing additional electric conductivity, a reaction site of a positive electrode active material is provided, and therefore, battery capacity and life time properties are enhanced.

Lithium-sulfur battery separation film having composite coating layer including polydopamine, manufacturing method therefor, and lithium-sulfur battery comprising same

The present invention relates to an electrolyte containing a polydopamine and a lithium-sulfur battery including the same and, more particularly, to a technique in which polydopamine contained in an electrolyte adsorbs a lithium polysulfide eluted from a positive electrode of a lithium-sulfur battery. When using an electrolyte, according to the present invention, to which polydopamine particles are added, the polydopamine particles dispersed in the electrolyte act to adsorb lithium polysulfide eluted from a positive electrode during the charging and discharging, and thus can suppress the diffusion thereof, i.e., suppress a shuttle reaction, thereby improving the capacity and lifetime characteristics of the lithium-sulfur battery.

Electrolyte containing polydopamine and lithium-sulfur battery including same

The present application relates to a lithium electrode and a lithium battery including the same.

Lithium electrode and lithium battery including same

A lithium electrode including a porous carbon body; and a lithium metal inserted into pores of the porous carbon body is provided. The lithium electrode may include a lithium ion conductive protective layer formed on at least one surface of the porous carbon body. The lithium electrode can be used as a negative electrode in a lithium secondary battery.

Lithium electrode and lithium secondary battery comprising same

Disclosed are an electrode assembly for sulfur-lithium ion batteries that uses a lithium-containing compound as a cathode active material and a sulfur-containing compound as an anode active material and a sulfur-lithium ion battery including the same.

Electrode assembly for sulfur-lithium ion battery and sulfur-lithium ion battery including the same

Provided is a method for reproducing a situation using a mobile device having an image shooting function. The method may include extracting first keypoints from a live view output to a display of the mobile device, extracting second keypoints from a previously shot image, calculating a tilt of the mobile device at which the first keypoints are mapped to the second keypoints within a critical range, and synthesizing the previously shot image with the live view in a state where the mobile device has been adjusted according to guide information based on a result of the calculating.

Method and system for reproducing situation using mobile device having image shooting function

Growing community of inventors

Seoul, South Korea

Seong Ho Lee