Titles:
SEPARATOR AND SECONDARY BATTERY INCLUDING SEPARATOR
セパレータ、およびセパレータを含む二次電池
Abstracts:
Provided are: a separator which has excellent slipping properties and machinability, and can enable a secondary battery in which the degradation of battery characteristics during repeated charging and discharging is suppressed; and a secondary battery comprising the separator. Provided are: a separator having a first layer composed of a porous polyolefin; and a secondary battery using the separator. The convergence time of the temperature rise of the first layer when impregnated with N-methyl pyrrolidone containing 3 wt% of water and then irradiated with an 1800 W-output microwave having a frequency of 2455 MHz is 2.9-5.7 s·m2/g, and when a ball having a diameter of 14.3 mm and a weight of 11.9 g is dropped to free-fall onto the first layer, the minimum drop height at which the first layer is torn by the ball is 50-150 cm.
Titles:
Separator for secondary battery and secondary battery
二次電池用セパレータおよび二次電池
Abstracts:
PROBLEM TO BE SOLVED BY THE INVENTION The object of the present invention is to provide a separator for a secondary battery which has high thermal breakdown resistance and excellent battery characteristics at low cost. SOLUTION: This separator is a separator in which a porous layer containing an aromatic polyamide resin containing a structure represented by the following formula (1) and inorganic particles is laminated on at least one side of a porous base material, wherein 5 moles of Ar1 % Or more and 80 mol% or less is an aromatic group having an ether group. --NH - Ar @ 1 --NH - CO - Ar @ 2 --CO-- (1) wherein Ar @ 1 and Ar @ 2 each represent an aromatic group. 【Selection drawing】 None
Titles:
METHOD FOR MANUFACTURING SEPARATOR FOR SECONDARY BATTERY
이차전지용 분리막 제조 방법
Abstracts:
The present invention relates to a method of manufacturing a separator for a secondary battery, and more particularly, to a method of manufacturing a separator for a secondary battery, comprising: a surface treatment step of activating at least one surface of a separator substrate by corona discharge; Applying binder polymer particles having a particle diameter of 10 탆 or less on the surface-activated separation membrane substrate under a normal temperature and pressure condition and applying the powder binder; And a step of heat-treating and heat-sealing the separation membrane base material to which the binder polymer particles are adhered, thereby providing a separation membrane production method capable of reducing processing steps and manufacturing costs.
본 발명은 이차전지용 분리막 제조 방법에 관한 것으로, 구체적으로 코로나 방전에 의해 분리막 기재의 적어도 일 표면을 활성화시키는 표면 처리 단계; 상온 상압 조건하에서 상기 표면 활성화된 분리막 기재 상에 입경이 10㎛ 이하인 바인더 고분자 입자를 분체 도포하여 접착하는 단계; 및 상기 바인더 고분자 입자가 접착된 분리막 기재를 열처리하여 열융착하는 단계;를 포함함으로써, 공정 단계 및 제조 비용을 절감할 수 있는 분리막 제조 방법을 제공한다.
Titles:
SEPARATOR, ELECTROCHEMICAL CELL INCLUDING SEPARATOR, METHOD OF PREPARING SEPARATOR, AND NON-WOVEN FABRIC
SEPARATOR, ELEKTROCHEMISCHE ZELLE MIT DEM SEPARATOR, VERFAHREN ZUR HERSTELLUNG DES SEPARATORS UND VLIESSTOFF
Abstract:
Provided are a separator including carboxyl-group-containing cellulose nanofibers and a porous film having a tensile strength of about 60 MPa or greater, an electrochemical cell including the separator, a method of preparing the separator, and non-woven fabric.
Applicant:
SAMSUNG ELECTRONICS CO LTD [KR]
Inventors:
KIM NAGJONG [KR]
LEE SUNGHAENG [KR]
KANG JIN KYU [KR]
PARK JINHWAN [KR]
PARK KITAE [KR]
PARK SOOJIN [KR]
Other family members:
CN 107978718 A,
Pub. Date: 2018-05-01,
EPO Reference
US 2018114967 A1,
Pub. Date: 2018-04-26,
EPO Reference
PROBLEM TO BE SOLVED: To provide an electric storage device which suppresses a difference depending on places of ion permeability between a positive electrode and a negative electrode while providing a separator having a high transmission area. SOLUTION: A separator 25 interposed between an active material layer of a cathode 23 and an active material layer of a anode 24 is provided, and the separator 25 can transmit ions moving between the active material layers, and the other separator 25 And a porous layer 28 is provided between the high transmission region 25a and the active material layer opposed to the high transmission region 25a, and the separator 25 is provided between the high transmission region 25a and the active material layer opposed to the high transmission region 25a , Two or more high transmission regions 25a, and the porous layer 28 is provided at two or more places corresponding to the high transmission region 25a. (FIG.
