Home > Products > Energy storage battery > Lithium iron phosphate battery system

Lithium iron phosphate battery system

I. Product Overview

The lithium carbonate energy storage battery system is a new type of large-capacity energy storage solution that uses high-purity battery-grade lithium carbonate (Li₂CO₃) as the core positive electrode material and lithium iron phosphate (LiFePO₄, LFP) as the mainstream electrochemical system. Lithium carbonate is known as "white petroleum" and is a key lithium source material for lithium-ion batteries. Its purity and stability directly affect the performance and lifespan of the energy storage system.

Based on the globally standardized 20-foot standard container design, this energy storage system adopts large-capacity battery cells and a highly integrated PACK architecture. It is widely applicable to various energy storage scenarios such as the power generation side, grid side, and user side, providing solid energy storage support for the construction of a new power system with "source, grid, load, and storage" coordinated development. The product deeply integrates efficient liquid cooling technology, advanced BMS algorithms, and multiple safety protection systems, helping to transform the energy structure towards cleaner and lower-carbonization.

II. Core Technical Features

Large capacity and high integration: The energy storage system is carried in a 20-foot standard container. The system's energy capacity can reach 6.26 MWh, and the system energy efficiency is as high as 96.5%. Through modular integration optimization, the number of system components per GWh is reduced by 47%, significantly reducing the maintenance difficulty and the total life cycle operation cost. The system's volumetric energy density is increased by 25%, and when applied to a 100 MWh station, the occupied area can be reduced by 31%, significantly saving land resources.

Long lifespan and low degradation: The system design life is up to 20 years, and the core battery cell has a cycle life exceeding 15,000 times. This effectively reduces the total life cycle investment cost. Some high-end battery cell products introduce "lithium control technology" and lithium source slow-release compensation formula, achieving 5-year flexible "zero degradation". The total life cycle cost reduction is over 13%. Through the comprehensive regulation of expansion force growth mechanism model, electrolyte consumption mechanism model, and active lithium loss mechanism model, a low-expansion system is constructed to ensure long-term operational stability.

High-efficiency liquid cooling temperature control: The thermal management system employs advanced liquid cooling technology and three-dimensional heat dissipation technology, with the working temperature range covering -40°C to 60°C. It can achieve precise temperature control with a package-level temperature difference of ≤ 2°C and a system-level temperature difference of ≤ 5°C. It can handle extremely hot and cold environments with ease, meeting the requirements of high temperatures, cold regions, and high altitudes ("three-high" requirements), ensuring the stable operation of the energy storage system around the clock.

Intelligent BMS Battery Management: Compatible with both full-time domain equalization and active equalization technologies, equipped with a high-precision equalization module, it achieves precise voltage convergence of battery cells through intelligent algorithms, prolonging the lifespan of battery cells and enhancing system stability. The system integrates the EMS energy management module, supporting time-based electricity pricing strategies and peak shaving and valley filling intelligent scheduling, allowing for on-demand expansion and cost savings.

Inquire Now

Features of CIGS Curved Solar Tile

Main technical parameters

Parameter Item Typical Value

System Rated Energy 6.26 MWh (20-foot standard container)

System Energy Efficiency ≥ 96.5%

Battery Type Lithium Iron Phosphate (LFP)

Rated Voltage 832V (depending on specific configuration)

Operating Voltage Range 741V - 936V

Charging and Discharging Rate Max. 0.5C

Discharge Depth 100%

System Design Life 20 Years

Cell Cycle Life ≥ 15,000 Times

Operating Temperature Range -40℃ to +60℃

Protection Grade IP54 to IP55

Corrosion Resistance Grade C5-M

Maximum Operating Altitude 4000m (frequency reduction at altitudes above 3000m)

Seismic Intensity 9 Degrees

Communication Interface Ethernet / CAN

Communication Protocol MODBUS TCP/IP

Safety Assurance System

This system has established a complete six-dimensional security protection system, comprehensively covering six major aspects: inherent safety, four-layer fire protection, active defense, electrical safety, mechanical safety, and intelligent early warning. It is equipped with a sophisticated thermal runaway warning and handling system, setting up multiple layers of defense from the battery cell to the entire system, effectively blocking all kinds of safety risks.

At the cell level, an innovative "thermal separation technology" is adopted to completely isolate the electrical space from the space for heat runaway exhaust, ensuring the safety of the entire station. The lithium iron phosphate cells inherently possess advantages such as high thermal stability, strong safety performance, and no use of precious metals, with long cycle life. Their dominant position in the energy storage field continues to strengthen.

At the fire protection level, the system is equipped with a dual fire protection system design, combined with intelligent early warning and active defense mechanisms. It complies with international safety standards such as IEC62619, and fully meets the industry safety development norms and safety management requirements for electrochemical energy storage stations.

Economic analysis

The largest cost component of an energy storage station comes from the battery cells, typically accounting for 50% to 60% of the total investment. Lithium carbonate, as the core raw material for lithium iron phosphate battery cells, accounts for approximately 40% of the battery cost. Fluctuations in the price of lithium carbonate have a significant impact on the economic performance of the system. It has been estimated that for every 10,000 yuan increase in the price of lithium carbonate per ton, the cost of energy storage battery cells increases by approximately 0.05 yuan per Wh.

Currently, the price of lithium carbonate has rebounded strongly from 75,000 yuan/ton at the end of 2024 to 15-160,000 yuan/ton. Against this backdrop, the system has significantly reduced the total life cycle cost through long-life design (20-year design life, 15,000 cycles) and improved the return on investment. The 100% discharge depth design further enhances the return on investment of the product, effectively breaking the traditional pain point in the energy storage industry of "high investment, low return".

In early 2026, the National Development and Reform Commission and the National Energy Administration jointly issued the "Notice on Improving the Capacity Price Mechanism for Power Generation Sides", for the first time at the national level, clearly defining the capacity value of new energy storage. The commercial operation model of independent energy storage projects has become more clear, and the market revenue structure has become more diversified. Coupled with the explosive growth trend of new energy storage's installed capacity, which increased by more than four times year-on-year, the economic advantages of the energy storage system have become more prominent.