Sk on Co., Ltd.

Sk Innovation Co., Ltd.

Su Hee Han

Jong Hyuk Lee

Hee Gyoung Kang

Myoung Lae Kim

Joo Hyun Lee

Hyo Shin Kwak

In Haeng Cho

Dai In Park

Sung Yon Oh

Jin Haek Yang

A battery module according to an embodiment of the present invention includes a battery stack in which a plurality of battery cells including a cathode tab and an anode tab are stacked; a first bus bar assembly including a first bus bar connecting cathode tabs and anode tabs located at one end of the battery stack; and a second bus bar assembly including a second bus bar connecting cathode tabs and anode tabs located at the other end of the battery stack. The first bus bar assembly or the second bus bar assembly may include a venting part including at least one venting knife which protrudes from the first bus bar or the second bus bar toward the battery cell, such that stability of the battery module may be improved.

Battery module

A lithium secondary battery according to an embodiment of the present invention includes a stack structure including a plurality of pouch cells and an elastic foam layer formed on an outer surface of at least one of the plurality of pouch cells. A uniform pressure may be provided by the elastic foam layer to prevent deformation of the battery due to contraction and expansion of the electrode.

Lithium secondary battery and method of fabricating the same

A battery module according to an embodiment of the present invention includes: a battery stack in which a plurality of battery cells including a cathode tab and an anode tab are stacked; a first bus bar assembly including a first bus bar connecting cathode tabs and anode tabs located at one end of the battery stack; and a second bus bar assembly including a second bus bar connecting cathode tabs and anode tabs located at the other end of the battery stack. The first bus bar assembly or the second bus bar assembly may include a venting part including at least one venting knife which protrudes from the first bus bar or the second bus bar toward the battery cell, such that stability of the battery module may be improved.

Provided are an electrolyte for a secondary battery including a lithium salt, a nonaqueous organic solvent, and a bisfluorophosphite multicyclic compound, and a lithium secondary battery including the electrolyte.

Growing community of inventors

Daejeon, South Korea

Su Hee Han