Batteries having convoluted, freeform shapes. These batteries can have curved and twisted surfaces that are freeform and do not have a constant radius or degree of rotation. A stack of battery layers can undergo a two-step heat press. The first heat press ...

Provided is a pouch-type rechargeable battery (100). A rechargeable battery (100) according to an exemplary embodiment of the present invention includes: an electrode assembly (20) including a positive electrode (21), a negative electrode (22), and a separ...

An electrochemical cell having plate electrodes housed inside mating "clam shell" casing components (22,24). When mated together, the casing components are form-fitting with respect to the internal battery structure so as to reduce the overall size of the ...