SECONDARY CELL CONTAINING ORGANIC-INORGANIC HYBRID NANOPOROUS MATERIAL AS WATER ADSORBENT

The present invention is a secondary cell in which an electrode assembly comprising an anode, a cathode and a separation membrane disposed between the anode and the cathode and an electrolyte are included together inside a cell case, the secondary cell comprising, as a water adsorbent, in at least o...

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Bibliographische Detailangaben
Hauptverfasser: CHO, Kyung Ho, LEE, U Hwang, HWANG, Dong Won, HWANG, Young Kyu, CHANG, Jong San, LEE, Sue Kyung, HONG, Do Young
Format: Patent
Sprache:eng ; fre ; kor
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Zusammenfassung:The present invention is a secondary cell in which an electrode assembly comprising an anode, a cathode and a separation membrane disposed between the anode and the cathode and an electrolyte are included together inside a cell case, the secondary cell comprising, as a water adsorbent, in at least one of the areas selected from the group consisting of the anode, the cathode, the separation membrane, the electrolyte and the inside of the cell case: a first organic-inorganic hybrid nanoporous material which allows at least 70% of the total amount of adsorbed moisture to be desorbed at 150℃ or below and thus can be regenerated; and optionally a second organic-inorganic hybrid nanoporous material which exhibits greater moisture adsorption capacity than moisture desorption capacity when the relative humidity (p/p0) is 0.3 or lower (p0 represents the saturated vapor pressure at an application temperature, and p represents the vapor pressure at the time of adsorption). La présente invention concerne une cellule secondaire dans laquelle un ensemble d'électrodes comprenant une anode, une cathode et une membrane de séparation disposée entre l'anode et la cathode et un électrolyte sont inclus ensemble à l'intérieur d'un boîtier de cellules, la cellule secondaire comprenant, sous la forme d'un adsorbant d'eau, dans au moins l'une des zones choisies dans le groupe constitué de l'anode, la cathode, la membrane de séparation, l'électrolyte et l'intérieur du boîtier de cellules : un premier matériau nanoporeux hybride organique-inorganique qui permet à au moins 70 % de la quantité totale d'humidité adsorbée d'être désorbés à 150 °C ou moins et qui de ce fait peut être régénéré; et éventuellement un second matériau nanoporeux hybride organique-inorganique qui présente une plus grande capacité d'adsorption d'humidité que la capacité de désorption d'humidité lorsque l'humidité relative (p/p0) est inférieure ou égale à 0,3 (p0 représente la pression de vapeur saturée à une température d'application, et p représente la pression de vapeur au moment de l'adsorption). 본 발명은 양극, 음극, 상기 양극과 음극 사이에 개재되는 분리막을 포함하는 전극조립체가 전해액과 함께 전지케이스의 내부에 내장되어 있는 이차전지로서, 상기 양극, 음극, 분리막, 전해액 및 전지 케이스 내부로 이루어진 군으로부터 선택되는 하나 이상의 부위에 수분 흡착제로, 흡착된 수분의 흡착 총량의 70% 이상의 탈착이 150℃ 이하에서 이루어져 재생이 가능한 제1 유무기 하이브리드 나노세공체(organic-inorganic hybrid nanoporous materials); 및 선택적으로 상대 습도 p/p0가 0.3 이하일 때, 수분 흡착능이 수분 탈착능보다 더 큰 제2 유무기 하이브리드 나노세공체(이 때 p0는 적용 온도에서의 포화 증기압, p는 흡착 시의 증기압을 나타냄)를 포함하는 것이 특징인 이차전지를 제공한다.