Under the backdrop of the promotion of the dual-carbon goals and the acceleration of the construction of a new power system, energy storage, as a key link in balancing the volatility of wind and solar energy and enhancing the stability of the power grid, is experiencing explosive growth. Concurrently, the demand for energy storage lithium batteries has continued to soar. Data shows that the global new installed capacity of energy storage is expected to reach 438 GWh in 2026, with a year-on-year growth of 62%. Among them, lithium battery energy storage occupies an absolute dominant position. Among the numerous lithium battery technology routes, lithium iron phosphate, with its unique advantages, has overcome the internal competition of multiple technology routes and has become the core force supporting the high-quality development of the energy storage industry, covering all application scenarios such as the power grid side, industrial and commercial sectors, and household use. 
The soaring demand for energy storage lithium batteries is fundamentally driven by the dual forces of energy transition and expansion of application scenarios, rather than short-term market speculation. From the perspective of energy structure, the installed capacity of renewable energy sources such as wind power and photovoltaic power continues to increase, but their intermittent and random characteristics have led to increasingly prominent grid absorption pressure. Energy storage systems have become a "necessary configuration" for the integration of wind and solar power. The policy requirements for wind and solar power to be equipped with storage have further amplified the demand for lithium batteries. From the perspective of application scenarios, the explosive growth of AI computing power has driven the need for storage in data centers, peak-valley arbitrage in industrial and commercial enterprises, the popularization of household energy storage, and the rapid rise of emerging markets in overseas regions. This has formed a multi-scenario and multi-level demand matrix, directly driving the significant growth in the shipment of energy storage lithium batteries. 
During the continuous release of demand for energy storage lithium batteries, the reason why lithium iron phosphate technology can stand out and become the core support lies in its precise matching of the core demands of the energy storage scenarios - safety, economy, and long-term effectiveness. This is also the core competitiveness that distinguishes it from other technology routes such as lithium cobalt oxide, and it is also the rational choice made by the industry after long-term practice. 
Safety is the bottom line for energy storage systems and is also the most prominent advantage of lithium iron phosphate. Energy storage projects are mostly deployed on a large scale in centralized locations or installed close to households. Safety hazards directly affect the safety of personnel and property. Unlike lithium-ion batteries whose thermal runaway temperature is only 200-250℃ and which can easily explode and burn after being punctured, lithium iron phosphate has a thermal runaway temperature exceeding 800℃. During the puncture test, only smoke is emitted without any flames. This fundamentally reduces the risks of fire and explosion, perfectly meeting the requirements for the long-term stable operation of energy storage scenarios. At the same time, lithium iron phosphate does not contain precious metals such as cobalt and nickel. The raw materials are mainly iron and phosphorus, which are widely distributed and environmentally friendly. The subsequent recycling and treatment are also relatively easy, which is in line with the green development requirements under the dual-carbon goals. 
Economy and long-term effectiveness have supported the large-scale application of lithium iron phosphate. The investment return period of energy storage projects is long, and cost control and service life directly determine the feasibility of the projects. The cost of the positive electrode material of lithium iron phosphate is only 1/3 of that of lithium cobalt oxide, and the system cost is approximately 30% lower. Moreover, China has more than 40% of the global reserves of phosphorus ore, with a strong supply chain and being unaffected by fluctuations in the prices of precious metals, maintaining a stable cost advantage. In terms of cycle life, lithium iron phosphate can reach 6,000-8,000 cycles at an 80% discharge depth. Some high-end products can exceed 10,000 cycles. Calculated based on a daily cycle, the lifespan can reach 10-15 years, which is 2-3 times that of lithium cobalt oxide, significantly reducing the operation and maintenance costs and replacement costs of energy storage projects. 
Furthermore, the continuous breakthroughs in lithium iron phosphate technology have further addressed its energy density shortcomings, expanding its application boundaries. Through structural innovation and material modification, the energy density of lithium iron phosphate has increased from the traditional 100-160 Wh/kg to 180-230 Wh/kg, approaching the lower limit of ternary lithium. Combined with high-pressure density technology, it has achieved a breakthrough in ultra-fast charging, completely breaking the conventional perception of "low energy density". It can not only meet the large-scale deployment requirements of centralized energy storage, but also be adapted to scenarios with volume and weight requirements such as household and mobile energy storage. As of 2024, the global shipment volume of energy storage batteries accounted for 92.5% of lithium iron phosphate. More than 90% of the energy storage products of China's leading enterprises adopt this technology, which fully demonstrates its dominant position. 
In response to the core questions within the industry, clear answers are provided based on industry practices, helping the market to fully understand the value of lithium iron phosphate technology: 
Question 1: The demand for energy storage lithium batteries is continuously surging. Why has lithium iron phosphate become the mainstream choice instead of other technologies such as lithium ternary? 
Answer: The core reason is that lithium iron phosphate precisely meets the core requirements of energy storage scenarios, while the advantages of lithium ternary lie in different application scenarios and energy storage demands. The core advantage of lithium ternary is its high energy density, which is more suitable for the field of new energy vehicles where volume and weight are sensitive; however, in energy storage scenarios, safety, cost and lifespan are more important. The shortcomings of lithium ternary, such as poor thermal stability, high cost and short lifespan, are magnified infinitely and cannot meet the requirements of long-term stable and low-cost operation of energy storage projects. On the other hand, the safety, economy and long-term advantages of lithium iron phosphate are highly compatible with the demands of various energy storage scenarios such as those in the power grid, industrial and commercial sectors, and household use. Moreover, technological iteration has compensated for the energy density shortcoming, making it naturally the mainstream choice in the industry. 
Question 2: The lithium iron phosphate technology has reached a mature stage. Will it be replaced by new energy storage technologies in the future? Can its core supporting position be maintained? 
Answer: In the short term, the core supporting position of lithium iron phosphate will not be undermined. In the long term, it will complement rather than replace new energy storage technologies. Currently, although new technologies such as flow batteries and flywheel energy storage have been applied in some scenarios, they face issues such as high costs, immature technology, and limited applicable scenarios, and thus cannot achieve large-scale popularization. However, the lithium iron phosphate technology has a complete industrial chain layout, with mature technologies and controllable costs at each link, and it is still continuously evolving and upgrading. There is still room for improvement in energy density and charging and discharging efficiency. In the future, with the diversification of energy storage demands, lithium iron phosphate will dominate the mainstream energy storage scenarios, while new energy storage technologies will play a supplementary role in specific niche scenarios, jointly supporting the development of the energy storage industry. 
In conclusion, the soaring demand for energy storage lithium batteries is an inevitable outcome of the energy transition entering the deep-water zone. The phosphoric acid lithium battery technology, with its core advantages of safety, economy, and long-term performance, as well as the improvement in scene adaptability brought about by technological iterations, has become the core force supporting the explosive growth of the energy storage industry. In the future, with the continuous optimization of phosphoric acid lithium battery technology and the continuous improvement of the industry chain, it will further consolidate its core supporting position. At the same time, it will also develop in synergy with new energy storage technologies, contribute to the construction of the new power system, and promote the early realization of the dual-carbon goals.