Samsung SDI

Samsung SDI’s high-power cylindrical battery

In 2005, Samsung entered the power tool market by successfully developing a lithium-ion battery for power tools for the first time in Korea. Power tools require high power and safety since they are used for drilling concrete, cutting trees or grinding metal. Therefore, a long-standing and high-power battery is needed for a power tool to make a strong and instant power.

Samsung SDI developed two batteries: 65mm-long and 18mm-in-diameter ‘18650’ cylindrical battery, and 70mm-long and 21mm-in-diameter ‘21700’ cylindrical battery with 50% higher energy capacity compared to the ‘18650’. With these batteries, we could make technological progress to respond to client’s requirements for battery capacity and life.