Disclosed is a rechargeable battery according to an exemplary embodiment of the present invention which comprises an electrode assembly (10) having a first electrode (11), a second electrode (12), and a separator (13) interposed between the first and the s...

A protection circuit of a secondary battery 1 includes a thermal switching element which has an resistance that decreases along with increase of temperature and which is connected in parallel with the secondary battery 1.

A rechargeable battery includes an electrode assembly (10) having a positive electrode, a negative electrode, and a separator located between the positive electrode and the negative electrode; a case (34) housing the electrode assembly (10), the case (34) ...

A battery element of a lead acid battery including a negative plate, a positive and a separator having a porous organic polymer additive having phosphonic functionality in the negative plate and/or separator to improve life of the battery. A macroporous po...

A battery separator including a microporous polyolefinic membrane having a porosity in a range of 30 - 80%, an average pore size in a range of 0.02 - 2.0 microns, and being made from a blend of a polyolefin polymer and an oligomer of a polyolefinic polymer...

In a conventional battery containing metal lithium in the negative electrode, there is a problem that large short-circuit current was generated with temperature rise due to internal short-circuit or the like, and therefore, the temperature of the battery f...

A conventional battery has a problem that a large short-circuit current is generated with temperature rise due to internal short-circuit, and therefore, the temperature of the battery further increases due to heat and the short-circuit current is increased...