Lg Chem, Ltd

Lg Energy Solution, Ltd.

Toray Battery Seperator Film Co., Ltd.

Toray Industries, Inc.

Samsung Electronics Co., Ltd.

Lg Chemical Ltd.

Toray Battery Separator Film Co., Ltd.

Pil-Kyu Park

Je-Jun Lee

Jin-Hak Kong

Do-Gyun Kim

Jae-Won Lim

Duk-Hyun Ryu

Jong-Sik Park

Kyu-Hyun Choi

Kwang-Su Hwangbo

Kwan-Hee Lee

Su-Ji Choi

Min-Ki Jo

Byoung-Gu Lee

Hak-Kyun Kim

Yu-Sung Choe

Jae-Eun Lee

Geon-Woo Min

Jae-Woong Kim

Bo-Hyun Kang

Hae-Jin Lim

Soon-O Lee

Jong-Hun Kim

Sang-Young Lee

In-Chul Kim

Cha-Hun Ku

Je-Young Kim

Soon-Ho Ahn

Su-Jin Yoon

Jang-Hyuk Hong

Jae-Young Lee

Jong-Hwan Kim

Joo-Sung Lee

Yong-Tae Lee

Byoung-Jin Shin

Yong-Ju Lee

Yoon-Jung Bae

Byung-Hun Oh

Ki-Tae Kim

Sun-Mi Jin

Ji-Min Jung

Ji-Young Park

Jee-Ho Kim

Sung-Hoon Yu

Min-Gyu Kim

Han-Ho Lee

Byeong-Gyu Cho

Young-Sun Park

Myoung-Hun Lee

Jae-Won Lee

Han-Gab Song

Eun-Ju Kang

Jin-Nyoung Yoo

Young-Tae Kim

An-Soo Jeong

Nam-Won Kim

Sook Yun

Sun-Ju Park

Hyun-Min Jang

Joo-Hwan Sung

Oh Young Hyun

Vin-Na Jo

Jung-Hyun Choi

Jong-Hoon Park

Myung-Hoon Ko

Ji-Sang Yu

Ju-Dam Kim

Jeong-In Yu

Soo-An Choi

Hyeon-Min Song

Oh-young Hyun

Kwi-Sub Yun

Young-Tae Lee

U-Jin Yoon

Sung-Min Park

So-Ra Lee

Ki-Chul Hong

Seo-Young Kwon

Jee-Eun Kim

Dong-Hun Han

Kwang-Pyo Choi

Jeong-Yong Choi

Jae-Won Lg Chem Reasearch Park Lee

Je-Young 103-1708 Expo Apartment Kim

Soo-An Ls Cable Ltd 555 Choi

Soon-Ho 109-1004 Samsung Hanwool Apartment Ahn

Ju-Dam Ls Cable Ltd 555 Kim

A battery includes an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and second electrode, a first portion including an active material extending between a pair of first sides, and a second portion extending between the pair of first sides and exposed beyond the separator, at least a part of the second portion includes an electrode tab; a battery housing having a first end with a first opening, a second end opposite the first end, and an inner surface, the battery housing accommodating the electrode assembly; a first current collector including a tab coupling portion coupled to the second portion of the first electrode and a housing coupling portion extending from the tab coupling portion and electrically coupled to the inner surface of the battery housing; and a cap covering the first opening of the battery housing.

Battery and current collector applied thereto, and battery pack and vehicle including the battery

The riveting structure of an electrode terminal for a battery includes a battery housing having a bottom; an electrode terminal riveted through a hole formed in the bottom of the battery housing; and a gasket between the electrode terminal and the battery housing. Also, the electrode terminal includes a body portion inserted into the hole; an outer flange portion extending along an outer surface of the bottom of the battery housing from a first side of the body portion exposed through the outer surface; an inner flange portion extending toward an inner surface of the bottom of the battery housing from a second side of the body portion exposed through the inner surface; and a flat portion on the second side of the body portion.

Riveting structure of electrode terminal, and cylindrical battery cell, battery pack and vehicle including the same

A battery having an electrode assembly including a first electrode, a second electrode, and a separator between the first and the second electrode, the first electrode having a first portion including an active material extending between a pair of first sides, and a second portion extending between the pair of first sides and exposed beyond the separator, and at least part of the second portion includes an electrode tab; a battery housing having a first opening at a first end and a second end opposite the first end, the battery housing accommodating the electrode assembly; and a first current collector including a support portion on the electrode assembly, a first tab coupling portion extending from the support portion and coupled with the second portion of the first electrode and a first housing coupling portion extending from the support portion and electrically coupled onto an inner surface of the battery housing.

An electrode assembly, a battery, and a battery pack and a vehicle including the same are provided. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on an axis to define a core and an outer circumference. The first electrode includes a first portion coated with an active material and a second portion at a first side and adjacent the first portion, the second portion being exposed beyond the separator along a first axial direction of the electrode assembly. A part of the second portion is bent in a radial direction of the electrode assembly forming a first surface region including stacked layers of the second portion, and in a partial region of the first surface region, a number of the stacked layers of the second portion is 10 or more in the in the first axial direction.

Electrode assembly, battery, and battery pack and vehicle including the same

A battery includes an electrode assembly including a first electrode, second electrode, and a separator between the first electrode and the second electrode, the first electrode including a first region coated with an active material and a second region at a first side and adjacent to the first region, the second region being exposed beyond the separator, and at least part of the second region is an electrode tab; a housing including a first end with a first opening, the housing accommodating the electrode assembly; a first current collector including an edge portion on the electrode assembly, a second region coupling portion extending from the edge portion and coupled with the second region, and a terminal coupling portion spaced apart from the second region coupling portion; and a terminal coupled with the terminal coupling portion.

Battery and current collector applied thereto, and battery pack and vehicle including the same

A battery can include an electrode assembly, a battery housing, a terminal and a cap. The electrode assembly can have a first electrode, a second electrode and a separator between the first electrode and the second electrode. Each of the first electrode and the second electrode can have a first portion including an active material corresponding to the separator, and a second portion exposed beyond the separator and not coated with the active material. The battery housing can have a first end with a first opening and a second end with a second opening opposite the first end. The terminal can be electrically connected to the second portion of the first electrode and exposed out of the battery housing through the first opening of the battery housing at the first end.

Battery, and battery pack and vehicle including the same

A battery can include an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode. The first electrode can have a pair of first sides and a pair of second sides extending between the pair of first sides, a first portion including an active material extending between the pair of first sides, and a second portion extending between the pair of first sides and exposed beyond the separator along a winding direction. The battery can further include a battery housing having a first opening at a first end and a second end with a second opening opposite the first end, a first current collector including a support portion positioned on the electrode assembly, and a housing cover which seals the first opening.

A battery, includes an electrode assembly having a first electrode, a second electrode and a separator, wherein each of the first electrode and the second electrode has a first portion including an active material corresponding to the separator, and a second portion exposed beyond the separator and not coated with the active material; a battery housing having a first end with a first opening and a second end with a second opening opposite the first end, the battery housing accommodating the electrode assembly through the second opening at the second end and electrically connected to the second portion of the second electrode; a terminal electrically connected to the second portion of the first electrode and exposed out of the battery housing through the first opening of the battery housing at the first end; and a cap covering and sealing the second opening at the second end of the battery housing.

A battery can include an electrode assembly having a first electrode, a second electrode and a separator. The first electrode can include a first active material region coated with an active material layer along a winding direction and a first uncoated region not coated with the active material layer, and at least part of the first uncoated region used as an electrode tab. The battery can further include a first current collector coupled to at least part of the first uncoated region on the electrode assembly, a battery housing to accommodate the electrode assembly and the first current collector, and an insulator between an inner surface of the battery housing facing the first uncoated region or the first current collector and the first uncoated region or the first current collector to block the electrical connection between the first uncoated region and the battery housing.

Battery, and battery pack and vehicle comprising the same

An electrode assembly includes a first electrode; a second electrode; and a separator, the first electrode, the second electrode, and the separator wound about an axis defining a core and an outer circumference of the electrode assembly. The first electrode has a pair of first sides and a pair of second sides, a first portion extending between the pair of first sides, and a second portion extending between the pair of first sides, the first portion being coated with an active material, and at least a part of the second portion includes an electrode tab. The second portion includes a first part adjacent to the core of the electrode assembly, a second part adjacent to the outer circumference of the electrode assembly, and a third part between the first part and the second part. The first or second part has a smaller height than the third part.

Provided is a method for determining the wetting degree of a lithium ion battery cell using a low current test. The wetting degree determination method according to the present disclosure includes a) obtaining, as a reference charge profile, a charge profile recorded while charging a reference battery cell having undergone receiving an electrode assembly and an electrolyte solution in a case, assembling and pre-aging with a low current of 0.01 C-rate or less, b) measuring and recording a charge profile while charging another battery cell having undergone receiving an electrode assembly and an electrolyte solution in a case, assembling and pre-aging with a low current of 0.01 C-rate or less in the same way as the reference battery cell, and c) determining the wetting degree of another battery cell relative to the reference battery cell by comparative analysis of the reference charge profile and the measured charge profile.

Method for determining degree of wetting by using low current test

Composite particles and a negative electrode active material including such particles for an electrochemical device. The negative electrode active material is capable of lithium intercalation/deintercalation and includes composite particles including a carbon phase including a carbonaceous material, silicon (Si) and lithium fluoride (LiF). The Si and LiF may be present as Si&#x2014;LiF mixed particles, which are dispersed in the carbon phase, wherein the Si&#x2014;LiF mixed particles are dispersed in the carbon phase with uniform or non-uniform distribution. In addition, the composite particles include the carbon phase mixed uniformly or amorphously with the Si&#x2014;LiF mixed particles.

Negative electrode active material and negative electrode including the same

A lithium secondary battery is provided which includes a cylindrical jelly roll in which an electrode assembly having a stacked structure including a positive electrode is wound cylindrically, wherein a semi-cylindrical first winding core and second winding core are spaced apart from each other by a predetermined interval, the positive electrode includes a non-coated portion sheet having a positive electrode tab fused thereto and a coated portion sheet, and the non-coated portion sheet and the coated portion sheet are attached by a tape to provide the positive electrode, one end of the positive electrode is positioned at the core portion of the cylindrical jelly roll, and a portion of the positive electrode having the tape is positioned around a circumference of the winding core member such that it avoids a portion where the first winding core is spaced apart from the second winding core by the predetermined interval.

Lithium secondary battery including cylindrical jelly roll

Growing community of inventors

Daejeon, South Korea

Pil-Kyu Park