Samsung Sdi Co., Inc.

Sora Lee

Hyeri Eom

Changsu Shin

Janghyun Song

Eungyeong Gu

Soomin Ahn

Changui Jeong

Minkyun Mok

Youngdeok Kim

Mansik Cho

Dukhyoung Yoon

Chang Ui Jeong

Provided is a battery pack. The battery pack includes: a battery cell including a cell vent; frames arranged together with the battery cell in a direction and coupled together to face each other with the battery cell therebetween, the frames including guide ribs surrounding the cell vent; and a top cover arranged above the frames to cover the frames and including a protruding barrier wall surrounding the guide ribs. According to the present disclosure, the battery pack has an improved vent structure to rapidly discharge gas generated in an abnormal battery cell to the outside of the battery pack.

Battery pack

A composite electrode active material includes: a core portion including a silicon-based alloy; and a shell portion disposed on the core portion and including a coating layer, wherein the coating layer includes an amorphous carbon material and a lithium titanium oxide. A lithium battery including the composite electrode active material and a method of manufacturing the composite electrode active material are also provided.

Composite electrode active material, lithium battery including the same, and preparation method thereof

A composite anode active material includes a metallic core alloyable with lithium, and a coating layer on the metallic core, the coating layer including lithium fluoride (LiF) nanoparticles and a carbonaceous material.

Composite anode active material, lithium battery including the same, and method of preparing the composite anode active material

Disclosed is a secondary battery including a negative electrode, a positive electrode, and an electrolyte between the negative electrode and the positive electrode, wherein the negative electrode includes a negative electrode active material including: an Si&#x2014;Fe based alloy core; a carbonaceous first coating layer disposed on the core; and a second coating layer which is disposed on the first coating layer and includes carbon nanotubes (CNTs) having an average length of about 1.0 nm to about 2.0 &#x3bc;m.

Secondary battery

A negative electrode slurry composition includes a negative active material, a binder, and a dispersant. The dispersant includes a polyacrylic acid (PAA) having a weight average molecular weight (Mw) greater than 10 and less than 10,000. A negative electrode and a lithium battery include the negative electrode slurry composition.

Negative electrode slurry composition, and negative electrode and lithium battery including the negative electrode slurry composition

A battery pack is disclosed. In one aspect, the battery pack includes a plurality of battery cells electrically connected to each other and comprising first and second outermost battery cells positioned at opposite ends thereof and a case accommodating the battery cells. The battery pack also includes a barrier wall formed between the battery cells and the case and a traversing tab positioned between the case and the barrier wall and electrically connecting the first and second outermost battery cells. At least one embodiment can facilitate a welding process while preventing a conductive tab connecting battery cells to a protective circuit module from being short-circuited.

Growing community of inventors

Yongin-si, South Korea

Sora Lee