Abstract: A positive electrode including a positive electrode active material layer disposed on at least one surface of a positive electrode current collector, the positive electrode active material layer including a lithium transition metal phosphate, a fluorine-based binder, and a conductive material. The lithium transition metal phosphate includes a carbon coating layer formed on a surface thereof, and a ratio (B/A) of a total weight (B) of the fluorine-based binder to a total weight (A) of carbon of the conductive material and the lithium transition metal phosphate in the positive electrode active material layer is 0.7 to 1.7.

Abstract: A rescue outfit is provided, which comprises a waterproof protecting cloth, a back frame, front and rear foldable hemispherical covers, and a fastener. The waterproof protecting cloth is for enclosing whole body of a user. A back frame is embedded in the waterproof protecting cloth. The front foldable hemispherical cover is partially connected to a front portion of the waterproof protecting cloth hermetically. The rear foldable hemispherical cover is partially connected to a rear portion of the waterproof protecting cloth hermetically. The fastener is for holding together and sealing portions of the front and rear foldable hemispherical covers. A substantial portion of the floating ball is kept above water.