Chilwee has established 13 scientific and technological innovation platforms in China. These include a national enterprise technology center, a National Environmental Protection Engineering Technology Center, a National CNAS - accredited laboratory, a postdoctoral research workstation, and an academician workstation. Additionally, it has 19 overseas R & D institutions located in countries such as the United States, the United Kingdom, Russia, Germany, France, and Canada. Moreover, it has collaborated with over 20 top - tier universities and institutions both at home and abroad.
Research and development batch
Production batch
Reserve batch
Everything can be economized, but talent and R & D investment cannot.
National level
Provincial level
National Enterprise Technology Center
National accredited laboratory
State Key Laboratory of Light Industry
Provincial Key Enterprise Research Institute
Provincial Industrial Design Center
Provincial Academician and Expert Workstation
Zhejiang Provincial Engineering Technology Center for Chemical Energy Storage Batteries
Zhejiang Provincial Engineering Research Center for Power and Energy Storage Power Sources
Provincial Enterprise Research Institute
Provincial Enterprise Technology Center
This project innovatively applies composite lead - wire materials to address the key issue of high interface resistance in composite wires used for battery grids. It effectively inhibits metal inter - crystal and grain - boundary corrosion, reduces hydrogen evolution, and meets the requirements of long - life and large - capacity sealed batteries for plate - grid corrosion resistance and low water loss. The composite wire is lightweight, which reduces the resistivity of the plate grid, thus effectively enhancing the specific energy and deep - cycle ability. Meanwhile, the conductive glass wire improves the mechanical properties of the composite grid, strengthens the tensile creep properties of the grid, and prevents plate failure due to expansion deformation in the later stage. In terms of structure, a new butt - welding structure design is adopted, which decreases the internal resistance of the battery and improves its cyclic charge - discharge performance.
High Specific Energy:
For the pack - system energy - storage battery, the 2 - hour rate specific energy reaches 35.0 Wh/kg; the 10 - hour specific energy reaches 39.0 Wh/kg or higher.
For the long - life energy - storage battery, the cell cycle life at 85% DOD (Depth of Discharge) is 4500 times, and the system cycle life at 80% DOD is 3600 times or more. Also, the long - life energy - storage battery has a cycle life of over 4000 times at 70% DOD.
Energy storage systems are applicable in various energy storage fields such as energy storage power stations, peak - shaving and valley - filling operations, photovoltaic energy storage, wind energy storage, and more.
Since the birth of lead-acid batteries, they have been widely developed due to their high cost-performance ratio, high safety and reliability, and recyclability, and have been well applied in the fields of electric vehicles and communications. With the continuous upgrading of people's demands, lightweight has become the development trend of batteries and an eternal topic in the industry.
Chilwee has collaborated with relevant scientific research institutions to carry out the research and development of lightweight materials for batteries. By combining lightweight materials with corrosion-resistant lead alloy materials, it makes full use of the characteristics of high strength of high-performance lightweight materials and the strong corrosion resistance of lead alloys to manufacture current collectors with high strength and light weight. Moreover, the trace elements in the lead alloy used can prevent the formation of a non-conductive layer at the grid interface (PCL-1 failure mode), significantly reducing the proportion of inactive materials in the battery. The lightweight of the active materials is achieved through the improvement of the active materials. The 4BS crystal seeds are developed as the skeleton of the active materials for the positive electrode to prepare a positive electrode with high porosity and high strength. On the premise of ensuring the cycle life, it avoids the softening of the active materials (PCL-2 failure mode), achieving the lightweight target. For the negative electrode, it takes advantage of the lead-carbon electrodes to improve the utilization rate of the active materials. By utilizing the electrical conductivity and catalytic effect of carbon materials, etc., it improves the sulfation of the negative electrode (PCL-3 failure mode).
High specific energy: For power batteries, the specific energy at the 2h rate reaches 45wh/kg; for long-life energy storage batteries, the specific energy at the 10h rate reaches more than 40wh/kg.
Long cycle life: For power batteries, the number of cycles at 100% DOD reaches more than 300 times, and the number of cycles at 80% DOD reaches more than 400 times; for long-life energy storage batteries, the number of cycles at 70% DOD reaches more than 4000 times.
Electric vehicles: electric bicycles, electric motorcycles, electric vehicles, hybrid vehicles, etc.
Energy storage systems: energy storage power stations, peak shaving and valley filling, photovoltaic energy storage, wind energy storage and other energy storage fields.
In recent years, Chilwee Group has regarded "intelligent manufacturing" as the "lifeline" for enterprise innovation and development, the "engine" for transformation and upgrading, and the "accelerator" for catching up and leapfrogging. It has actively embraced the digital economy, made full use of the Internet, big data, cloud computing, and the Internet of Things, optimized resource allocation, and promoted green manufacturing and intelligent manufacturing. An initial big - data management center for the entire industrial chain, covering the production end, the supply end, the sales end, and then the recycling end, has been established, which has provided strong support for the high - quality development of Chilwee.
Intelligence is evident everywhere. The Group employs information technology to achieve "machine - managed operations and machine - to - human substitution", thereby facilitating the transformation of production methods. Especially in the past two years, Chilwee Group has not only had a number of projects selected for the national relevant intelligent manufacturing demonstration projects but also seen a number of its subsidiaries, due to their high - level intelligent manufacturing, become models of intelligent manufacturing enterprises promoted by local governments.
First-class products, from the international first-class innovative talent team. With an open and inclusive attitude and prudent and pragmatic concept, CHILWEE recruits top scientific research talents around the world, and unites with authoritative experts in different fields in technology research and development to form the foundation of the energy building.
World-renowned academicians in the field of new energy technology
International top expert professors
National experts
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