LS Cable & System participates in national project for 'H-ESS development' with LS Materials

Development of Hybrid ESS for Electric Vehicle Charging
Prototype Production in 2023, Demonstration Test Completion Planned for 2025

LS Materials employees are manufacturing capacitors.
[Photo by LS Cable & System]

[Asia Economy Reporter Han Yeju] LS Cable & System announced on the 9th that it will participate in the national project for the development of a 'Hybrid ESS (H-ESS) for electric vehicle charging' together with its subsidiary LS Mtron.

H-ESS is a product that combines lithium-ion capacitors (LIC) with the existing lithium-ion battery (LIB) of ESS to enhance the stability of power supply and reduce the risk of fire. Capacitors are industrial special batteries characterized by high-speed charging/discharging and long lifespan. Their application areas are expanding to renewable energy, electric vehicles, factory automation, and more.

LS Mtron will lead the entire project based on large capacitor technology, while LS Cable & System will develop temperature monitoring and charge/discharge control systems. The two companies plan to produce prototypes in 2023 and complete demonstration tests through E1's charging stations by 2025.

H-ESS applies the instantaneous high-power function of LIC, enabling stable power supply even during peak times when multiple electric vehicles are charged simultaneously at charging stations. Additionally, the control system ensures stable operation of LIC under rapid power changes, reducing the possibility of fire caused by thermal runaway. Its performance degradation is minimal even after repeated charging and discharging, resulting in a lifespan 5 to 10 times longer than general ESS.

Energy efficiency is also improved, allowing for downsizing of ESS. This leads to a reduction in the size of power distribution facilities in charging infrastructure and lowers construction costs.

Hong Youngho, CEO of LS Mtron, said, "Research on applying ESS to electric vehicle charging infrastructure is actively underway both domestically and internationally, but no commercialized products exist yet. We will take the lead in the market by proactively developing H-ESS."