Entering the second quarter of this year, Lishen Battery, as a new energy national team, has made frequent efforts in energy storage orders, technology, new products and other dimensions.
On April 9, Lishen Battery signed cooperation agreements with Hangzhou Songdu Energy Storage, China Metallurgical Paper, Hunan Tai Green Paper, Hunan Juntai New Materials and other enterprises to win more than 200MWh energy storage orders; On the same day, Lishen Battery's 12MW/24MWh energy storage power station was put into operation in Zhuhai. Last month, Lishen Battery's first overseas large-scale energy storage battery system project was delivered as a whole, which adopts independent design solutions from the integration of battery cells, battery modules, battery clusters and containers, and has the characteristics of low cost, high safety, high efficiency and long life.
On April 11, at the 12th Energy Storage International Summit and Exhibition, Lishen Battery released the world's first liquid-cooled container product with a single box of 10MWh - LS-Container 10M (LS-C10M), which has strong market competitiveness in terms of energy density, volume utilization, floor space saving, system cost saving and safety level, and can meet the demand for power side energy storage products. It is worth noting that in addition to bringing new 10MWh containers for large-scale energy storage, Lishen also released LS-C417K, an industrial and commercial integrated cabinet energy storage product covering industrial and commercial and household energy storage, and LS-C20K, a high-voltage product for home energy storage, at the same time.
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The world's first single-box 10MWh large-scale storage product was released
Reducing investment costs and saving the floor space of energy storage projects, thereby creating higher economic benefits for terminals, are the core internal driving forces of the market driving the development of the energy storage industry.
Under this trend, energy storage, battery and industry chain related enterprises have continued to achieve larger energy storage projects and lower costs in recent years by improving the energy density of battery cells, expanding the capacity of battery cells, and optimizing the design of energy storage systems. In fact, according to Battery China's observation, at the cell level, large storage cells are iterating from 280Ah to 300+Ah cells, and the capacity of energy storage single boxes is also being upgraded from 3.5MWh to 5MWh, or even 6MWh.
According to reports, the LS-C10M released by Lishen Battery, as the world's first single-box 10MWh energy storage product so far, has been significantly improved compared with mainstream products at this stage in terms of safety, energy density and application convenience, and is at the leading level in the industry.
In terms of battery cells, LS-C10M products use 314Ah cells and standard 1P52S battery modules independently developed by Lishen Battery, which are compatible with 1P104S battery modules integrated into 10MWh battery systems, taking the lead in providing new energy density solutions for customers who need more than two systems.
In order to improve the cycle life of energy storage products and create more economic benefits, Lishen Battery LS-C10M has built an intelligent battery management system to manage the whole life cycle of products, detect the status of all cells, and through high-precision SOE estimation and real-time dynamic SOH diagnosis, so as to further realize the low power consumption and intelligent application of the battery, improve the stability of the system, and thus improve the service life.
In order to achieve the goal of ultimate safety of energy storage, Lishen Battery's core technology focuses on breaking through safety difficulties and creating a five-layer safety system to achieve the ultimate safety of energy storage projects.
In terms of cell safety, LS-C10M uses 314Ah energy storage special cells, relying on the reliability design of the whole life cycle of the battery cell system, the raw materials have passed the control and testing of ppb-level magnetic materials, the automatic and high-precision real-time monitoring of the production line, and the multi-level strong standard inspection and certification of product safety regulations, so as to fully ensure the intrinsic safety of the battery cells.
In terms of electrical safety, LS-C10M adopts real-time monitoring and multi-level early warning settings to achieve rapid linkage protection of multiple devices. In addition, it has three-level fuse protection of combiner cabinet, high-voltage box and module to realize the "millisecond" safe breaking of short-circuit current.
In terms of thermal safety management, LS-C10M relies on a compact liquid cooling design, a combination of active + passive thermal barrier design, and an intelligent temperature control strategy to escort thermal safety management. In addition, Lishen has the world's largest air-cooled module core technology patent, among which the world's largest air-cooled battery module independently developed by Lishen has been authorized by the United States invention patent, and the transformation of core patent achievements has been applied to a number of projects to enhance the competitiveness of products in the market.
Fire safety is the physical line of defense for the safety of energy storage equipment, LS-C10M accurately protects each group of cells with the help of PACK-level detection and spraying, and has a double barrier of fire extinguishing gas + water spray;
The last layer of safety guarantee is system-level safety protection, LS-C10M adopts all-round multi-dimensional monitoring, including fire detection + temperature and humidity environment monitoring + leakage detection, and sets up a system-level emergency plan and all-round multi-dimensional monitoring of the explosion ventilation and pressure relief system. The five-layer safety protection weaves a safety network to ensure the ultimate safety of the product to the greatest extent.
From the economic point of view, at this stage, many large storage products have problems such as excessive volume and high construction cost, which have caused a great burden to the user in terms of site selection and cost. Based on in-depth market research and forward-looking product design, the design standard of LS-C10M is 40 feet, which can reduce the floor space by 28%, which greatly saves the cost of land. At the same time, the LS-C10M standard module design can be quickly integrated, compact structure, and the overall transportation, construction and operation and maintenance are very convenient, which makes the delivery capacity more secure and greatly shortens the delivery cycle.
In addition, modularization also gives the product the ability to flexibly adapt to a variety of application scenarios, effectively reducing project construction costs and commissioning and operation and maintenance costs.
Based on the five-fold safety protection, the use of standard modular design, high integration, effective saving of floor space, and the characteristics of long cycle and improving system energy efficiency, Lishen Battery's world's first single-box 10MWh large storage product will provide better solutions for the power generation, transmission and distribution, and user markets.
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Continuous technology and product evolution, full coverage of industrial and commercial savings and home savings
In order to improve the energy storage benefits of industrial and commercial users, Lishen Battery faces the current competition dilemma of "homogenization" of domestic energy storage equipment, and strives to seek technological breakthroughs to solve the main pain points currently faced by the energy storage industry, such as cost, life and safety, so as to promote the commercialization and large-scale development of the energy storage industry.
LS-C417K, an energy storage product of Lishen Battery's industrial and commercial integrated cabinet, has a single system power of up to 417kWh, adopts AC and DC integrated technology, which can realize intelligent calculation of power and income, and can flexibly expand capacity in multi-stage parallel according to the operational needs of enterprises, so that enterprises have higher profit margins.
In terms of safety, based on the five-fold protection matrix of Lishen battery, LS-C417K adopts high-capacity lithium iron phosphate cells, which have excellent heat dissipation performance and ensure the safety of the battery itself; At the same time, it has pack-level active protection, and the temperature difference of the battery cells in the module can be controlled at ≤1.5°C; The temperature difference of the battery cells in the whole cabinet can be controlled at ≤2.5°C; By configuring a combustible gas detector and a fire extinguishing medium nozzle, the LS-C417K can gain insight into the early thermal runaway state of the battery and mobilize the fire extinguishing device configured in the battery module in time to achieve rapid fire extinguishing.
It is worth mentioning that LS-C417K has IP55 protection level and C4 anti-corrosion design, which has higher adaptability to the environment, strong pressure resistance, can achieve fast delivery, plug and play, and can better serve medium and large industrial and commercial enterprise users.
In terms of household energy storage, Lishen Battery has launched the LS-C20K innovative product, which adopts a modular design to simplify the complex and provide users with flexible home energy storage solutions. According to reports, taking into account the special scene needs of households, the LS-C20K with stacked modular design is smaller in size, beautiful and simple in appearance, with a sense of design, a single module weighs only 45kg, and the assembly method is flexible, with a single module power of 5.12kWh, and the system power can be expanded from 10kWh to 30kWh, bringing rich scalability and maintenance convenience to meet the needs of different users.
In order to improve the long-term use value of the equipment, LS-C20K replaces low voltage with high voltage, the same capacity of the battery, the same output power, high voltage is small, small current is slow discharge, less damage to the battery, can extend the battery life by 10%-20%.
In terms of ease of use, LS-C20K has visual remote monitoring at both ends, plug and play without wiring, automatic coding without upper computer configuration, and the working mode can be set at will through the mobile phone APP, which can be easily operated even in remote areas and save labor costs.
Lishen Battery has been deeply engaged in the field of new energy for nearly 30 years, and has built energy storage product solutions covering all scenarios such as household storage, industrial and commercial energy storage, and power side from battery cells, battery modules, system integration, containers, and cabinet products. At present, a number of energy storage products developed by Lishen for the global market have successfully passed a series of strict certifications at home and abroad, such as GB/T36276, UL9540A, UL1973, UL9540, NFPA855, and IEC.
It is worth mentioning that as a battery enterprise empowered by central enterprises, Lishen Battery has the fundamental guarantee to provide customers with stable operation throughout the life cycle, and can also bring lasting escort for the long-term industrial characteristics of energy storage product requirements.