Titles:
SEPARATOR FOR BATTERY TO WHICH FUNCTIONAL BINDER IS APPLIED, AND ELECTROCHEMICAL DEVICE APPLYING SAME
기능성 바인더가 적용된 전지용 분리막 및 이를 적용한 전기화학 소자
Abstracts:
The present invention relates to: a functional binder in a separator that comprises a porous polyolefin substrate and an organic-inorganic composite porous coating layer which includes a mixture of a binder compound with inorganic particles formed on at least one surface of the substrate; and a separator comprising the same, wherein the functional binder can increase adhesion between a binder and an inorganic material and between a substrate and a binder while pre-empting an internal short-circuit through a self-healing function for partial damage of the separator, improve adhesion of the separator to a cathode and an anode, and respond to elution of a cathode material transition metal. In the binder according to the present invention, the proportion of the hydroxyl group in each molecule is 10% by weight or more.
본원 발명은 다공성 폴리올레핀 기재, 상기 기재의 적어도 일면에 형성된 무기물 입자들과 바인더 화합물의 혼합물을 포함하는 유기-무기 복합 다공성 코팅층을 포함하는 분리막에 있어서, 바인더-무기물, 기재-바인더의 접착력을 높이면서, 동시에 분리막의 일부 손상에 대해서 자기치유기능을 통해서 내부 단락을 미연에 방지하고, 분리막과 양극 및 음극과의 접착력을 향상시키며, 양극재 전이금속의 용출에 대응할 수 있는 기능성 바인더 및 이를 포함하는 분리막에 관하 발명이다. 본원 발명에 따른 바인더는 각 분자에서 히드록시기가 차지하는 비율이 10중량% 이상이다.
Applicant:
LG CHEMICAL LTD [KR] (주식회사 엘지화학)
Inventors:
NAM KWAN WOO [KR] (남관우)
YOON SU JIN [KR] (윤수진)
KWON HYE JIN [KR] (권혜진)
KIM CHAN JONG [KR] (김찬종)
LEE JE AN [KR] (이제안)
Titles:
An ethylene polymer, a drawn molded article, and a microporous membrane
에틸렌 중합체, 연신 성형체 및 미다공막
Abstracts:
The present invention relates to a process for producing a compound having a weight-average molecular weight (Mw) of 200,000 or more and 3,000,000 or less and having a three-component approximation of free induction attenuation at 130 ° C measured by a solid- Wherein the ratio is 40% or more to 60% or less and the ratio? /? Of the intermediate motion component (?) To the most motivated component (?) Is 1.0 or more and 4.0 or less.
본 발명은 중량 평균 분자량(Mw)이 200,000 이상 3,000,000 이하이고, 펄스 NMR의 솔리드 에코법에 의해 측정된 130℃에서의 자유 유도 감쇠를 3성분 근사한 경우에 있어서, 가장 운동성이 낮은 성분(α130)의 비율이 40％ 이상 60％ 이하이고, 중간의 운동 성분(β)과 가장 운동성이 높은 성분(γ)의 비 β/γ가 1.0 이상 4.0 이하인, 에틸렌 중합체를 제공한다.
Applicant:
ASAHI CHEMICAL IND [JP] (아사히 가세이 가부시키가이샤)
Titles:
Method for producing lithium ion secondary battery
リチウムイオン二次電池の製造方法
Abstracts:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a lithium ion secondary battery capable of improving productivity without causing thermal damage to a separator. SOLUTION: The method for producing a lithium ion secondary battery of the present invention comprises a laminate preparation step of preparing a laminate in which an electrode and a separator are adhered, and a dipping step of immersing the laminate in an electrolytic solution . Then, in the laminate manufacturing step, the melted hot melt adhesive is applied to the electrode, and then the electrode and the separator are overlapped and pressure-bonded, and the hot melt adhesive dissolves in the electrolytic solution Yes, productivity can be improved without causing thermal damage to the separator. 【Selection drawing】 None
Titles:
Negative electrode with separator layer for lithium ion secondary battery
リチウムイオン二次電池用のセパレータ層付き負極
Abstracts:
PROBLEM TO BE SOLVED: To provide a negative electrode with a separator layer for a lithium ion secondary battery, capable of suppressing a decrease in battery capacity while suppressing occurrence of a micro short circuit in a lithium ion secondary battery. A separator layer-attached negative electrode for a lithium ion secondary battery includes a negative electrode and a separator layer disposed on a surface of the negative electrode. The negative electrode 10 has a negative electrode current collector 11 and a negative electrode mixture layer 12 disposed on the surface of the negative electrode current collector 11. The negative electrode mixture layer 12 contains the negative electrode active material 12A. The separator layer 20 has a first layer 21 containing the first insulating particles 21 </ b> A and a second layer 22 containing the second insulating particles 22 </ b> B. The first layer 21 is disposed between the second layer 22 and the negative-electrode mixture layer 12. When DA> DB> DC, where DA is the average particle diameter of the negative electrode active material 12A, DB is the average particle diameter of the first insulating particles 21B, and DC is the average particle diameter of the second insulating particles 22C, And DB ≧ DA × 0.414 is satisfied. (FIG.
PROBLEM TO BE SOLVED: To prevent displacement of a separator due to tension during winding. SOLUTION: The secondary battery of the present invention comprises electrodes (11, 12), first and second separators (13, 14) having a heat resistant layer on one side, an axial core (15) extending in one axial direction, And a fixing member (60) for connecting the first separator and the second separator, wherein the first separator and the second separator are disposed such that the heat resistant layers face each other, and the first separator and the second separator have a first The fixing member (60) has at least the exposed portion of the first separator at both axial end portions of the shaft core (15), the exposed portion of the second separator , And the shaft core (15). (FIG.
