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HOME Mobility Copper foil

Copper foil

Anode Material for Lithium Ion Batteries(LIB) in Electric Vehicles(EVs)

Copper foil for Lithium Ion Battery(LIB) is a key material of EVs, that has been grwoing rapidly due to the recent tightening of enviromental regulations and rising demand for Copper foil. Copper foil is an Anode material for Lithium Ion Battery(LIB). It serves as a pathway for the electric current and is the source to emit the heat generated by a battery. The production of copper foil requires a technology for producing mother roll of copper foil thinner and wider. SK Nexilis, a wholly-owned business of SKC, has history of producing world's first ultra-thin (4㎛) copper foil in 2019. 

Cases of application

20200812192330062021.jpg EV (Electric Vehicle)
20200812192330062022.jpg IT products
20200812192330078023.jpg ESS (Energy Storage System)

Usage

Material for the anode current collector of lithium ion batteries

Major products

Major products
Major products Features
B battery foil Normal Grade
E battery foil High elongation after high strength
S battery foil High elongation
T battery foil Less than 6㎛

Certification

ISO

Packing unit

Roll

Table of physical properties of major products

Table of physical properties of major products​, Composed of B-STN, E-HEN, S-HSN, T-THx
​Category​B-STNE-HENS-HSNT-THx
​B-battery foil [Standard battery foil]​​​E-battery foil [High strength/high temperature/high elongation at normal temperature] ​​S-battery foil [High strength at normal/high temperatures]​NES
​normal temperature​​Tensile strength​Kgf/㎟33.855.554.532.753.552.5
​Elongation percentage​%6.84.24.54.22.52.9
​*High temperature ​​Tensile strength​​Kgf/㎟32.527.544.831.427.544.8
​Elongation percentage​​%8.215.84.85.19.83.1
​Cases of application​​Cylinder-type/cuboid-type Pouch-type​
IT, EV, ESS
​Cylinder-type/pouch-type​
IT, EV
​Cylinder-type/cuboid-type Pouch-type​
IT, EV
​Cuboid-type/pouch-type​
IT, EV
​Thickness​6~20㎛6~20㎛6~20㎛4㎛, 4.5㎛, 5㎛