Titles:
HEAT ABSORPTION SEPARATORS FOR HIGH ENERGY BATTERIES
SÉPARATEURS À ABSORPTION DE CHALEUR POUR BATTERIES À HAUTE ÉNERGIE
Abstracts:
A battery separator is provided comprising a microporous membrane comprising one or more layers of a polyolefin and a heat absorption layer affixed to a surface of the microporous membrane, wherein the heat absorption layer is configured to absorb heat and reduce thermal propagation within a battery cell. The heat absorption layer can comprise at least one of a phase change material or a high heat capacity material configured to absorb heat in or above a normal battery cell operating range.
L'invention concerne un séparateur de batterie comprenant une membrane microporeuse comprenant une ou plusieurs couches d'une polyoléfine et une couche d'absorption de chaleur fixée à une surface de la membrane microporeuse, la couche d'absorption de chaleur étant conçue pour absorber de la chaleur et réduire la propagation thermique à l'intérieur d'une cellule de batterie. La couche d'absorption de chaleur peut comprendre au moins l'un d'un matériau à changement de phase ou d'un matériau à capacité thermique élevée configuré pour absorber de la chaleur dans une plage de fonctionnement de cellule de batterie normale ou au-dessus de cette plage.
Titles:
SEPARATOR FOR POWER STORAGE DEVICES, AND POWER STORAGE DEVICE
蓄電デバイス用セパレータ及び蓄電デバイス
Abstracts:
A separator for power storage devices, the separator comprising a layer (A) that contains a polyolefin and a layer (B) that is arranged on at least one surface of the layer (A), while containing an inorganic filler, a water-insoluble binder, a water-soluble binder and a polyacrylic acid-based dispersant. The thermal shrinkage ratio S1 of this separator for power storage devices in propylene carbonate at 140°C is 5% or less.
Titles:
A composite diaphragm with functions of removing water and acid and its preparation method and application
一种具有除水和除酸功能的复合隔膜及其制备方法和应用
Abstracts:
The invention provides a composite diaphragm with functions of removing water and acid, and a preparation method and application thereof. The composite membrane with water and acid removal functions includes a modified base film and a hydrotalcite bimetallic oxide layer coated on the surface of the modified base film; the modified base film is modified by a high temperature resin. the basement membrane. In order to further reduce the moisture content and acidity of the battery, maintain the stability of the electrolyte and the positive electrode material, and further improve the cycle performance of the battery, the present invention introduces a calcined product of hydrotalcite (LDH) and a high temperature resistant resin on the surface of the modified separator, A composite membrane with water removal, acid removal, heat shrink resistance and high liquid absorption rate is obtained.
