A cell includes a housing and at least one electrode core assembly array encapsulated inside the housing. The electrode core assembly array includes N rows and M columns of electrode core assemblies, and the electrode core assembly includes an encapsulation film and at least one electrode core encapsulated inside the encapsulation film. The electrode core assemblies are arranged in rows, and each row includes M electrode core assemblies. The electrode core assemblies are arranged in columns, and each column includes N electrode core assemblies. The N electrode core assemblies in each column are connected in series to form an electrode core assembly string. The M electrode core assembly strings are connected in series. An air pressure between the metal housing and the encapsulation film is lower than an air pressure outside the metal housing.

A battery module according to an embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells are stacked, and a module frame for housing the battery cell stack, wherein the battery cell comprises a pouch case and an electrode assembly housed in the pouch case, and wherein a foam pad layer for controlling cell swelling is located at the outermost part of the pouch case.

A battery module according to an embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells are stacked, and a module frame for housing the battery cell stack, wherein the battery cell comprises a pouch case and an electrode assembly housed in the pouch case, and wherein a foam pad layer for controlling cell swelling is located at the outermost part of the pouch case.

Disclosed herein are a secondary battery, a method for manufacturing the secondary battery, and a battery pack comprising the secondary battery.

The secondary battery may comprises a sealing part formed on a pouch type exterior. The sealing part may comprise a main sealing part formed along a circumference of the recess part, and a protruding sealing part protruding from the main sealing part toward the electrode assembly. The protruding sealing part may comprise a first protruding sealing part formed between the first electrode lead and the second electrode lead, and a second protruding sealing part provided at a left side of the first electrode lead.

A pouch type lithium secondary battery may include an electrode assembly to which an electrode tab is attached; a pouch which includes an aluminum layer and a sealant layer and which encases the electrode assembly so that a portion of the electrode tab is exposed therefrom; a protrusion formed by sealant on a side of the pouch where the electrode tab is not exposed, in melting and flowing toward the electrode assembly then congealing to form a swelling on the pouch; and folds formed by bending a side of the pouch where the electrode tab is not exposed, wherein at least one of the folds includes the protrusion.

A pouch type lithium secondary battery may include an electrode assembly to which an electrode tab is attached; a pouch which includes an aluminum layer and a sealant layer and which encases the electrode assembly so that a portion of the electrode tab is exposed therefrom; a protrusion formed by sealant on a side of the pouch where the electrode tab is not exposed, in melting and flowing toward the electrode assembly then congealing to form a swelling on the pouch; and folds formed by bending a side of the pouch where the electrode tab is not exposed, wherein at least one of the folds includes the protrusion.

A lithium-ion battery module includes a housing having a plurality of partitions configured to define a plurality of compartments within a housing. The battery module also includes a lithium-ion cell element provided in each of the compartments of the housing. The battery module further includes a cover coupled to the housing and configured to route electrolyte into each of the compartments. The cover is also configured to seal the compartments of the housing.

A lithium-ion battery module includes a housing having a plurality of partitions configured to define a plurality of compartments within a housing. The battery module also includes a lithium-ion cell element provided in each of the compartments of the housing. The battery module further includes a cover coupled to the housing and configured to route electrolyte into each of the compartments. The cover is also configured to seal the compartments of the housing.

The present disclosure relates to a multilayer composite that may include a first porous layer, and a first barrier layer overlying the first porous layer. The first barrier layer may include a polyaramid material, a polyimide material, or any combination thereof. The multilayer composite may have a flame resistance rating of at least about 180° C. and a 50% strain compression rating of not greater than about 600 kPa.

A method for providing a miniature electrochemical cell having a total volume that is less than 0.5 cc is described. The cell casing is formed by joining two ceramic casing halves together. One or both casing halves are machined from ceramic to provide a recess that is sized and shaped to contain the electrode assembly. The opposite polarity terminals are electrically conductive feedthroughs or pathways, such as of gold, and are formed by brazing gold into tapered via holes machined into one or both ceramic casing halves. The two ceramic casing halves are separated from each other by a metal interlayer, such as of gold, bonded to a thin film metallization layer, such as of titanium, that contacts an edge periphery of each ceramic casing half. A solid electrolyte of LiPON (Li.sub.xPO.sub.yN.sub.z) is used to activate the electrode assembly.