Lg Energy Solution, Ltd.

Electronics and Telecommunications Research Institute

Skhynix Inc.

Lg Chem, Ltd

Korea Advanced Institute of Science and Technology

Korea Atomic Energy Research Institute

Daegu Gyeongbuk Institute of Science and Technology

Doyeon Kim

Changhun Park

Minchul Jang

Eunkyung Park

Bora Jung

Byoungkuk Son

Se Ho Park

Da Young Sung

Suk Il Youn

Minehul Jang

Donghyeon Kang

Taesang Choi

Yeilin Ham

Kyungmin Jeong

Myoungho Kim

Hyeonji Kim

Sunyoung Noh

Sungjin Kang

Hochun Lee

Junmo Kim

Minki Jo

Janghyeon Lee

Sihaeng Lee

The present invention relates to an electric vehicle charging device and to a method for controlling same. The electric vehicle charging device includes a plurality of charging cables installed in one electric vehicle charger. After battery charging of a vehicle, which has arrived first, is completed using one charging cable, a next vehicle is immediately charged using another charging cable such that even in a state where the vehicle, which has arrived first, does not leave a charging station, the next vehicle can be charged. Accordingly, it is possible to improve convenience of an electric vehicle user, and minimize waiting time for charging. Therefore, it is possible to improve the operational efficiency of the electric vehicle charger.

Electric vehicle charging device and method for controlling same

A lithium secondary battery including a positive electrode, a negative electrode comprising a negative electrode current collector, and an electrolyte disposed between the positive electrode and the negative electrode; and a lithium metal layer on the negative electrode current collector in the negative electrode. The electrolyte includes a first electrolyte layer and a second electrolyte disposed on the first electrolyte layer, wherein the first electrolyte layer faces the negative electrode, and the second electrolyte layer faces the positive electrode. The first electrolyte layer has higher ion conductivity than the second electrolyte layer, and wherein the lithium metal layer is formed by migration of lithium ions from the positive electrode after charging.

Lithium secondary battery

A lithium secondary battery including a negative electrode in which a negative electrode mixture included in the negative electrode is formed by charge and discharge of the battery. This negative electrode is formed by charge-induced formation of lithium metal on a negative electrode current collector having a three-dimensional structure form. The lithium secondary battery forms lithium metal while being blocked from the atmosphere. Therefore, formation of a surface oxide layer (native oxide layer) on a negative electrode is blocked and a lithium dendrite growth suppressing effect is achieved by forming lithium metal on a negative electrode current collector having a three-dimensional structure form. The lithium secondary battery has a superior battery efficiency and reduces declines in lifetime properties.

Disclosed is an electrolyte for a secondary battery, and a secondary battery comprising the same, and in particular, to an electrolyte for a secondary battery including an electrolyte salt, an organic solvent and an additive, wherein the additive includes at least one compound selected from the group consisting of a compound having an N&#x2014;Si-based bond and a compound having an O&#x2014;Si-based bond.

Electrolyte for secondary battery and secondary battery comprising same

A device includes an encoder configured to generate a plurality of feature data by encoding an image; a bottleneck circuit configured to generate enhanced feature data from first bottleneck data among the plurality of feature data; and a decoder configured to generate a depth map corresponding to the image by decoding the enhanced feature data and the plurality of feature data except the first bottleneck data.

Device for generating a depth map

A lithium secondary battery which is made of an anode-free battery and comprises lithium metal formed on a negative electrode current collector by charging. The lithium secondary battery comprises the lithium metal formed in a state of being shielded from the atmosphere, so that the generation of a surface oxide layer (native layer) formed on the negative electrode according to the prior art does not occur fundamentally, thereby preventing the deterioration of the efficiency and life characteristics of the battery.

An electroplating solution for lithium metal, and a method for preparing a lithium metal electrode using the same, and in particular, while preparing a lithium metal electrode using electroplating, a lithium metal electrode having enhanced surface properties may be prepared by electroplating using a plating solution including a lithium nitrogen oxide and a metal nitrogen oxide, and, by using such a lithium metal electrode in a battery, lifetime properties of the battery may be enhanced.

Electroplating solution for lithium metal, and method for manufacturing lithium metal electrode by using same

A first cloud computing data center and a second cloud computing data center are connected through a provider backbone bridge network (PBBN), and a plurality of working connection paths and protection connection paths are formed between end points between the first cloud computing data center and the second cloud computing data center and between end points within a cloud computing data center through the PBBN. When a failure occurs in the working connection path, the working connection path is switched to a corresponding protection connection path.

Method and apparatus for managing connection path failure between data centers for cloud computing

Growing community of inventors

Daejeon, South Korea

Doyeon Kim