KapJin Co., Ltd. is a South Korean technology company established in 1997, headquartered in Suwon, Gyeonggi-do. Specializing in power supply systems and advanced equipment for lithium-ion battery production, the firm plays a critical role in the global battery manufacturing value chain. KapJin’s core products include formation systems, charging and discharging equipment, power conversion systems (PCS), and low-voltage DC (LVDC) solutions. These technologies are essential for optimizing the performance and quality of batteries used in electric vehicles (EVs), energy storage systems (ESS), and other high-demand applications.
The company collaborates with major battery manufacturers such as SK Innovation, Samsung SDI, LG Energy Solution, and BYD, supplying equipment for critical production stages like battery formation. This phase involves controlled charge-discharge cycles to activate and stabilize cells, ensuring reliable performance. With a strong domestic market presence, KapJin ranks as South Korea’s second-largest supplier of formation equipment, trailing only PNE Solution. Its growth is reflected in sales rising from 15.5 billion won in 2016 to 47.9 billion won by 2019—a trajectory fueled by expanding global battery production needs.
Battery Technology
KapJin’s technologies are designed to address precision demands in battery manufacturing. Its formation equipment, such as the BPT series (including models KJPT-10S and KJPT-160S), controls voltage and current with high accuracy during the initial conditioning of new cells. This ensures consistent performance, extended cycle life, and safety compliance. Beyond formation, the company provides chargers, electronic loads, and automated testing systems tailored for quality control and process optimization.
- Charge and Discharger Units: Linear and switching-mode power supplies for precise battery testing and conditioning.
- AC/DC Converters: Efficient energy conversion solutions for grid integration and industrial systems.
- PCS Systems: Power conversion units for energy storage networks, managing bidirectional power flow between batteries and grids.
- LVDC Systems: Low-voltage DC power infrastructures for data centers, buildings, and EV charging stations.
KapJin’s R&D focus ensures its systems adhere to international standards, prioritizing durability and scalability. For example, its formation equipment integrates software algorithms to synchronize charge-discharge cycles with battery chemistry requirements, minimizing defects and maximizing yields. By enabling manufacturers to standardize processes, KapJin supports the mass production of high-quality lithium-ion cells for EVs, renewable energy storage, and consumer electronics.
Recent Projects
Recent activities center on strategic partnerships and equipment supply agreements. One notable effort involves KapJin’s ongoing partnership with SK Innovation, supplying formation systems for its global facilities, including plants in Hungary, China, and the U.S. The company has also engaged in competitive bids for back-end equipment contracts with Samsung SDI for its planned U.S. battery factory in collaboration with General Motors. These projects underscore KapJin’s capacity to meet rising demand for advanced battery manufacturing infrastructure.
Investors
KapJin has attracted significant institutional investment. In March 2022, Nsys Co., Ltd., a specialized battery equipment manufacturer, acquired a 14.13% stake through a 10.05 billion won private placement. This investment aimed to strengthen KapJin’s technological capabilities and global market competitiveness. Earlier, NKS Investment Co., Ltd. held a strategic stake until its exit via a July 2023 sale to KapJin. These strategic alliances have bolstered the company’s R&D initiatives, operational scale, and access to capital for expanding its equipment manufacturing capacity.
Business Details
Location: Suwon, South Korea
Website: http://kapjin.co.kr/
LinkedIn: n/a
