Samsung Sdi Co., Inc.

Chan Hong

Se-Ho Park

Jea-Woan Lee

Seung-Hee Park

Soomi Eo

Soo-Mi Eo

Seunghee Park

Jeawoan Lee

Young-Kwang Cho

Yi-Seop Ahn

Yu-Mi Ha

A rechargeable battery includes a wound electrode assembly including a separator between a first electrode and a second electrode, the first and second electrodes each including uncoated regions and coated regions; a case accommodating the electrode assembly; and a first electrode terminal and a second electrode terminal respectively coupled to the first and second electrodes and extending from the case, an uncoated region of the first electrode including inner and outer uncoated regions of a terminal end portion located at an outermost side of the electrode assembly, and the second electrode including an outer uncoated region of a terminal end portion facing the inner uncoated region of the first electrode and an additional inner coated region at an opposite side of the outer uncoated region.

Rechargeable battery comprising first and second electrodes each comprising uncoated regions and coated regions

A composite separator and a lithium secondary battery including the composite separator, and the composite separator includes a separator; a first coating layer disposed on a surface of the separator and including a (meth)acrylic polymer and/or (meth)acrylic modified polyester resin; and a second coating layer disposed on another surface of the separator and including a vinylidene fluoride-based polymer.

Composite separator for lithium secondary battery, and lithium secondary battery using the composite separator

Growing community of inventors

Yongin-si, South Korea

Chan Hong