| Desai Battery debuted at RE+, the largest solar energy professional exhibition in North America

On September 12, at the Las Vegas Sands Convention and Exhibition Center in the United States, Desai Battery debuted RE+ in North America with self-developed energy storage cells and a full range of energy storage products, winning many affirmatives and high comments from participants.

The United States International Solar Energy Exhibition (RE+) was held in Las Vegas on September 12-14. RE+ exhibition is co-sponsored by the American Solar Energy Industry Association and the American Smart Power Alliance, and its predecessor is the famous SPI&ESI in the United States energy. RE+ is not only the largest and most influential professional exhibition in the clean energy industry in North America, but also the most influential international exhibition in the solar energy industry around the world. As a platform for world-renowned new energy enterprises to display new technologies, new products and new ideas, RE+ exhibition has become a frontier for new energy enterprises around the world to explore the North American market. The exhibition brought together more than 27,000 new energy industry experts and more than 1,300 new energy exhibitors from around the world to talk about the development and future of clean energy.

01

Strength, to shine!

Desai Battery is a pioneer in the field of domestic lithium battery production and one of the leading manufacturers in the field of small and medium-sized mobile power supply in the world, and has established long-term stable and friendly cooperative relations with many large well-known American enterprises such as Google, Meta, Amazon. This time, Desai battery with self-developed energy storage cells, industrial and commercial and container energy storage, household energy storage, energy storage BMS and a series of star products and clean energy solutions appeared at the exhibition, attracting the world

Energy storage industry's vision. On the first day of the exhibition, the Desai battery booth ushered in a large number of visitors to stop and visit, and the product performance advantages and high-end manufacturing capabilities have won many cheers.

Driven by the mission of "scientific and technological innovation to build a zero-carbon future", Desai Battery is committed to providing excellent, professional and green integrated energy solutions for the global new energy market, helping to achieve the national "carbon neutral" strategic goal. With the four innovation systems of "material innovation, process innovation, structural innovation and product innovation", Desai Battery has carried out a comprehensive research and development layout of new battery materials and new structures, and has the rapid iterative innovation ability of battery products, and has developed and launched a full range of energy storage products covering multiple scenarios such as the power supply side, the power grid side and the user side.

02

Desai "Core", high quality!

At this exhibition, Desai battery not only brought 280Ah and 100AhLFP energy storage cell mass production products, but also 306Ah and 314Ah two next-generation LFP energy storage cell new products. With the support of advanced research and development strength, Desai battery energy storage cell products have the characteristics of high safety, long cycle and high energy efficiency. At the exhibition site, the 280Ah energy storage battery that has been mass-produced by Desai Battery attracted the close attention of guests at the conference.

High safety

Desai battery research and development innovation in the dimensions of battery materials and battery structure, combined with new technologies such as safety blocking and advanced manufacturing processes, can effectively reduce the temperature rise and thermal diffusion range of energy storage cells when subjected to external shocks, to ensure high safety and high reliability of products. Especially in the acupuncture and hot box experiments, the battery cell has no explosion and no fire, and the ultimate safety of the product has been fully reflected.

It is worth mentioning that Desai battery energy storage battery not only passed the GB/T32676, UL1973, IEC62619, UN38.3 and RoHS and other conventional certification tests, but also passed the UL9540A test with excellent safety performance. At present, only a few battery companies in China have passed the UL9540A related test audit, which indicates that the high safety of Desai battery energy storage cell products has been in the first-class level.

UL9540A test, proposed by UL, is a test method used to evaluate the spread of large-scale thermal runaway fire in battery energy storage systems, which has been widely recognized and adopted by relevant authorities and has become a landmark industry norm. UL9540A has now become a internationally recognized challenging international safety test standard, and its test report is a key report in the approval process of energy storage projects in North America, which can effectively reduce the risk of customers in the license approval of AHJ regulatory authorities across the United States, known as the "pass" for energy storage products in the North American market.

Long cycle high energy efficiency

With the continuous innovation and iterative upgrading of technology, Hunan Desai battery energy storage cell can truly achieve thousands of "zero" attenuation. According to the calculation of highly reliable simulation and prediction system model, the cycles of Desai energy storage battery have reached more than 12,000 times, and the product can meet the long-term efficient service life of 15-20 years. The energy efficiency is ≥95%, which is 5 points higher than the national standard, and the effective available power consumption of the energy storage battery is greatly improved. With these advantages, the energy storage cell of Desai battery can effectively reduce the comprehensive use cost of customers, greatly improve the return on investment of energy storage projects, and bring the ultimate cost performance to customers.

Na+ New route

As another highlight of the exhibition, the research and development progress of sodium ion energy storage cells has also received extensive attention from guests. In July this year, Hunan Desai Battery successfully passed the evaluation of the China Electronic Technology Standardization Institute Saisi Laboratory, became the first sodium-ion battery product evaluation unit in the country, and was awarded the "Top Ten innovative enterprises of sodium-ion battery in 2023". Hunan Desai battery self-developed sodium-ion battery, the use of layered oxide, with high specific capacity advantages, with the existing process equipment has a high compatibility, is the fastest industrialization of the current technical route, plans to complete the sample within this year, the first quarter of 2024 can reach mass production conditions.

03 Multiple scenes, intelligent energy storage!

At the exhibition site, the main products of the latest energy storage system developed by Desai Battery also made a shining debut through a series of intelligent energy storage solutions and application scenarios.

Household energy storage

In the field of household storage, Desai batteries have two categories of product lines, high voltage and low voltage, all using high-quality cells with a cycle life of more than 6,000 times. Through the scalable modular design of stacked batteries, the battery capacity of 5-40kWh can be expanded, and users can increase or decrease the battery according to their own power needs at different stages, so as to achieve flexible energy storage. At the same time, the IP65 protection level makes the indoor and outdoor installation options more flexible, and the equipment is configured with LED large screen, energy storage APP and BMS system interconnection to achieve intelligent monitoring and management of the equipment. The simple and intelligent UI operation interface display on the Desai battery booth attracted many visitors to stop and try.

215kWh Industrial and commercial integrated cabinet

As the star product of this exhibition, equipped with a highly intelligent EMS system, the use of self-developed Desai battery cells, self-produced battery modules, to provide an integrated solution from system design to integration, to meet the needs of a wide range of scenarios. Desai battery 215kWh industrial and commercial integrated cabinet can achieve IP67 battery pack, IP54 safety protection of the whole machine, the use of high efficiency insulation material mica sheet between the battery cells to prevent thermal runaway, the overall comprehensive efficiency of the cabinet ≥90%, charge and discharge efficiency ≥97%. At the same time, the highly integrated CCS solution is also perfectly compatible with Desai Battery's powerful fully automated intelligent manufacturing. Desai Battery's second generation of industrial and commercial energy storage products will also be available in Q4 2023, and will be iteratively upgraded with higher energy density, higher service life, safer fully submerged liquid cooling, and more intelligent analysis systems.

Container energy storage system

In the center of the booth, the container energy storage system model is equally outstanding, which from time to time caused heated discussions and inquiries on the spot. As the "big brother" in energy storage products, Desai battery 20-foot container can reach 3.35MWh, 5MWh. Compared with the traditional energy solution, the land utilization rate is increased by 42%. The container system is based on the 1500V platform design, which increases the overall efficiency of the system by 2%, reduces the auxiliary loss by 40%, the temperature difference is controlled at 3°C, and the system circulation is increased by 5%. The container energy storage system battery pack adopts flame-retardant and explosion-proof design to achieve IP67 safety protection. Through the system liquid cooling and heat dissipation, the battery life can be significantly improved. At the same time, the dual protection system of gas + water fire extinguishing is integrated inside the system to ensure product safety under extreme circumstances.

04

Gigafactory, Smart factory!

Relying on more than 20 years of battery manufacturing experience of Desai Battery and high-quality requirements of top customers, the company has advanced product research and development strength and intelligent manufacturing technology, and can provide system integration ODM/OEM business for a full range of energy storage products. With 14+ energy storage production lines and an annual output of 25GWh, Desai Battery can realize one-stop integration of energy storage cells, modules, PCS, EMS, fire protection system, liquid cooling/air cooling optional temperature control system, and provide partners with efficient and reliable energy storage system products from design to after-sales "end-to-end service" in the power generation side, grid side and user side.

Desai Battery is headquartered in Huizhou, with supporting manufacturing bases in Changsha and Vietnam, R & D centers in East and South China, and offices in North America and Northern Europe to create the best resource allocation model, provide more competitive products and services, meet the diverse needs of global customers and partners, and open up a new situation with an international business model.

Desai Battery uses the world's most advanced battery automation production equipment to build a fully automated production line for energy storage cells, which is one of the world's most advanced battery automation production lines. As a "zero" pollution workshop, the production environment reaches 10,000 level cleanliness standards, and local thousand-level control is achieved. In terms of environmental control, burr standards, foreign body detection and other controls, it is higher than the traditional lithium battery manufacturing level, effectively ensuring the high safety, high quality and high consistency of the product. Through MES/ERP/SAP and other information systems for manufacturing workshop data information analysis, monitoring, early warning, interception and traceability, management is more accurate, efficient, fast, transparent, to achieve the product life cycle control. Desai battery 280Ah energy storage cell fully automated production line design production efficiency of 16ppm, with fast and efficient batch delivery capacity.

Desai Battery has more than 100,000 square meters of energy storage system production base, with a strong automation design and development, integration, implementation capabilities, is committed to becoming the world's leading energy storage battery assembly and integration automation manufacturer, to build a "world-class factory". The production line adopts high-speed magnetic levitation system, which greatly improves the production efficiency, from automatic to full coverage performance testing, from accurate visual positioning to high-quality ring laser welding, supporting traceable database, integrating digital intelligence and integrated design, to achieve controllable management of the whole life cycle of the battery. At the same time, the flexible modular design enables the production line to quickly adapt to the flexible switching between products. The fully automated assembly and integrated production line of energy storage battery of Desai battery can cover all kinds of products such as home storage, industrial and commercial storage, and large storage, and truly achieve the "intelligent manufacturing" of the whole process from battery cell to system.

In the context of global climate change and the "two-carbon" national strategy, the main body of human energy from fossil energy to renewable energy, and ultimately achieve green and clean development is an irreversible trend, new energy storage plays a key role, bearing the social responsibility and historical mission of a long way to go. Desai Battery will continue to provide the market with more high-quality and safe energy storage products with advanced technology, high-quality service and continuous innovation, and sincerely look forward to further exchanges and cooperation with all parties, and work together to create a beautiful situation of high-quality development of the global energy storage industry, and jointly promote the realization of the grand goal of "carbon neutrality".