| abstract |
Provided is a lithium ion battery that has a high energy capacity, suppresses fine powder due to structural destruction, and has a long life. A lithium ion battery including an anode in a first chamber, a cathode in a second chamber, and a separator between the first and second chambers, the separator comprising one or more polymer nanocomposite nanofibers. A polymer nanocomposite nanofiber comprising a polymer matrix embedded with non-agglomerated ceramic and / or clay nanostructures, and a polymer nanocomposite nanofiber comprising non-aggregated ceramic and / or clay nanostructures A lithium ion battery containing 0.1 to 70% by weight, preferably 1 to 15% by weight on average. The battery wherein the polymer nanocomposite nanofiber has an average diameter of less than 1 μm, an average aspect ratio of at least 100, preferably an average length of at least 1000 μm and an average specific surface area of at least 100 m 2 / g. [Selection figure] None |