Samsung Sdi Co., Inc.

Jiho Lee

Mincheol Bae

Jin-Hee Bae

Kunbae Noh

Huichan Yun

Jingyo Kim

Sooyeon Sim

Hongkeun Choi

Ik-Jae Jeong

Taeksoo Kwak

Kyounghwan Noh

Ikjae Jeong

Yonggoog Kim

Byeong Gyu Hwang

Jinwoo Seo

Jeongmin Shin

Kwen-Woo Han

Kyoung-Hwan Noh

Dongju Shin

Hong-Keun Choi

Jun Sakong

Junyoung Jang

Wanhee Lim

Woo Han Kim

Hong Jeong Yu

Youngjae Joo

Doori Song

Yoonyoung Koo

Provided is a composition for forming a silica layer, the composition containing a silicon-containing polymer and a solvent, wherein a silica layer formed of the composition for forming the silica layer satisfies Relation 1. The definition of Relation 1 is as described in the specification. The definition of Relation 1 is the same as described in the specification.

Composition for forming silica layer, manufacturing method for silica layer, and silica layer

A battery pack is disclosed. In one aspect, the battery pack includes a battery cell and an electrode terminal including a plate member electrically connected to the battery cell, and a bolt passing through the plate member. The bolt includes a plurality of catch jaws disposed on opposing sides of the plate member in a length direction of the bolt and a thread portion exposed from the plate member. The plate member and the bolt include different metallic materials.

Battery pack including electrode terminal having catch jaws

Provided are a low temperature curing composition, a cured film obtained by curing the composition, and an electronic device comprising the cured film, wherein the composition comprises: (A) an epoxy group-containing siloxane compound represented by Chemical Formula 1:(RRRSiO)(RRSiO)(RSiO)(RRSiO)(RSiO)&#x2003;&#x2003;[Chemical Formula 1](In Chemical Formula 1, each of Rto Ris an organic group independently selected from a substituted or unsubstituted monovalent aliphatic hydrocarbon group of C1 to C6, a substituted or unsubstituted monovalent cycloaliphatic hydrocarbon group of C6 to C20, a substituted or unsubstituted monovalent aromatic hydrocarbon group of C6 to C20, and an epoxy-substituted monovalent organic group, at least one of R1 to R6 is an epoxy-substituted monovalent organic group, 0&#x2264;M&#x3c;1, 0&#x2264;D1&#x3c;1, 0&#x3c;T&#x2264;1, 0&#x2264;D2&#x3c;1, 0&#x2264;T2&#x3c;1, and M+D1+T1+D2+T2=1, wherein each of the structural units represented by M, D1, T1, D2, and T2 can include one or more types of different structural units); and (B) a cationic thermal initiator for a ring-opening reaction of epoxide, the initiator being a salt of a sulfonium-based cation and a borate-based anion, wherein the compound represented by chemical formula 1 is a combination of a siloxane 1,000 and a siloxane compound of which a number average molecular weight is in a range of 1,000-10,000.

Low temperature curing composition, cured film formed therefrom, and electronic device having cured film

A secondary battery includes an electrode assembly, a case, a cap plate, and a terminal plate. The electrode assembly includes a separator between first and second plates. The case includes the electrode assembly and has an opening. The cap plate seals the opening of the case and has a hole. The terminal plate is on the cap plate and includes a discharge hole aligned with the hole in the cap plate. A short circuit area with a vent may be included in the hole of the cap plate.

Secondary battery

A composition for forming a silica layer, a silica layer, and an electronic device, the composition including a silicon-containing polymer; and a solvent, wherein aH-NMR spectrum of the silicon-containing polymer satisfies Equations 1 and 2:=0.2 to 0.4&#x2003;&#x2003;[Equation 1]()/4.8 to 12.0.&#x2003;&#x2003;[Equation 2]

Composition for forming silica layer, and silica layer

A system for estimating the state of health (SOH) of a battery of an electric vehicle includes a charger recognition unit, a discharge instruction unit, and an SOH estimator. The charge recognition unit generates a charge recognition signal based on a charge state of the battery. The discharge instruction unit receives the charge recognition signal when the battery reaches at least one predetermined charge voltage value, temporarily stops charging of the battery, and discharges the battery to a certain level. Discharge is performed by operating at least one function of the electric vehicle. The SOH estimator estimates the SOH of the battery based on a voltage change measured during discharging of the battery based on the at least one predetermined current value.

System for estimating state of health of battery of electric vehicle

A composition for forming silica layer includes a silicon-containing polymer and a solvent, wherein a weight average molecular weight of the silicon-containing polymer ranges from about 2,000 to about 100,000 and a branching ratio (a) of the silicon-containing polymer calculated by Equation 1 ranges from about 0.25 to about 0.50.&#x3b7;=&#x2003;&#x2003;[Equation 1] In Equation 1,

Composition for forming silica layer, method for manufacturing silica layer, and electric device including silica layer

A busbar module connects a first cell and a second cell adjacent to the first cell, arranged in a first direction and each having first and second electrode terminals spaced apart in a second direction normal to the first direction. The busbar module includes a busbar that electrically connects a first electrode terminal of the first cell and a second electrode terminal of the second cell to each other, and an insulating portion that accommodates the busbar. The busbar includes a first recessed mounting portion, the first recessed mounting portion and a protruding shape of the first electrode terminal having interfitting shapes and a second recessed mounting portion, the second recessed mounting portion and a protruding shape of the second electrode terminal having interfitting shapes, the first and second mounting portions, being slideably coupleable with the first and second electrode terminals.

Busbar module

A method of manufacturing a silica layer includes: coating a pre-wetting liquid material including a carbon compound on a substrate; coating a composition for forming a silica layer on the substrate coated with the pre-wetting liquid material; and curing a substrate coated with the composition for forming a silica layer.

Method for manufacturing silica layer, silica layer, and electronic device

A battery module according to aspects of the present invention includes a plurality of battery cells each having a terminal, a reflective portion on the terminal, and a bus-bar coupled to the terminal to electrically connect the plurality of battery cells. The bus-bar may have an opening exposing at least a portion of the reflective portion. The reflective portion may be configured to reflect laser incident thereon through the opening. A method of manufacturing the battery module may include placing a bus-bar electrically connecting terminals of a plurality of battery cells, each of the terminals having a reflective portion on a top surface thereof, and the bus-bar having an opening exposing at least a portion of the reflective portion, and welding the bus-bar and the terminal to each other. The task of welding the bus bar may include irradiating a laser through the opening in the bus-bar.

Growing community of inventors

Yongin-si, South Korea

Jiho Lee