ESS Battery

Optimized Solution for Energy Saving & High-quality Power
Energy Storage System(ESS) stores electric energy and utilize them for later
consumption. It is purposed to improve energy efficiency, by enhancing the quality of
renewable energy that results stabilization of power supply system. LG Chem provides
most optimal energy solution for the users using our state-of-the-art energy storage
system with a long lifespan and a top-notch quality.

Product Details :

Concept of Energy Storage System (ESS)


Registered SA Products


Configuration of ESS Battery

Battery Cell

  • Customized cells for ESS purpose
  • Energy cell for long duration energy storage
  • Power cell for high power output energy storage


Product Details :

Battery Pack

  • ESS Pack composed of sub-modules, BMS, and BPU
  • Parallel expansions or Main Pack independent operation


Battery Module

  • 19-inch standard module
  • Product composed of sub-modules and BMS


Battery Rack System

  • ESS Battery Rack composed of BPU, BMS, and modules connected in series/parallel
  • Flexible system design : Fan-cooling or air cooling options available depending on heat dissipation


Purpose of ESS Battery

Power ancillary service(grid)

Power supply stabilization and
peak management

  • Peak load Reduction
  • Power quality improvement for renewable energy intermittency
  • Frequency Regulation


ESS for household use

Self-sufficient power
generation/consumption for solar
PV installed households

  • Night time use of stored solar energy
  • Reducing electricity bill




Uninterruptible Power Supply(UPS)

Power back-up for high profiled facilities

  • Internet data center
  • Telecommunication repeaters & base stations
  • Hospitals and public offices


Differentiation :

The No. 1 Li-ion Battery ESS Company in the World

LG Chem is leading the global ESS market with successes in various ESS projects, and its track record is rapidly growing

Differentiated Technology and Performance

LG Chem’s ESS battery applies the Stack & Folding technology to create high energy density and achieved compactness. It maintains stable structure against frequent charging/discharging, with superior lifespan compared to its competitors.

Battery Management System(BMS) with High Reliability

ESS battery requires BMS with level is divided into Module BMS, Rack BMS, and Bank BMS according to its application. LG Chem successfully developed a BMS based on its proprietary technology and has achieved the highest level of safety through an integrated management from battery cells to its entire system.

Functions of BMS (Battery Management System)

Measurement : Measure voltage, current, and temperature, which are the battery state information. - Diagnosis : Diagnose the safety and abnormal symptoms of a battery. - Control : Control temperature and cell balancing of a battery. - Communication : Provide the battery data by communicating with power conversion system as well as operating system.