July 7, 2025
On June 25, 2025, CROSTORION visited the headquarters of Beijing-based Welion New Energy Technology Co., Ltd. (WELION, www.solidstatelion.com), a pioneering company in the field of solid-state batteries. The meeting took place with Dr. Yu Huigen, Chairman of Welion, and Dr. Liu Ming, Vice President. The visit included a tour of Welion's flexible solid-state battery production line in Beijing.
The meeting focused on the development and technological advancements of solid-state batteries, including their potential applications in various industries. Both parties also discussed the potential of semi-solid-state batteries, which combine aspects of both liquid and solid-state technology, and their application in energy storage systems, electric vehicles, and consumer electronics.
Welion, founded as a spin-off from the Institute of Physics at the Chinese Academy of Sciences, is a national leader in solid-state lithium-ion battery technology. The company is recognized as a "National Specialized and Innovative Little Giant" and a unicorn enterprise, with a CNAS qualification for battery testing. Welion has more than 40 years of experience in the solid-state battery industry and boasts a dedicated R&D team of over 400 professionals. This team has achieved multiple "first-time" breakthroughs in solid-state lithium-ion technology, solidifying the company as one of the most advanced players in the global solid-state battery sector.
Solid-state batteries represent a groundbreaking advancement in energy storage technology. Unlike traditional lithium-ion batteries, which use a liquid electrolyte to facilitate the movement of ions, solid-state batteries replace the liquid electrolyte with a solid material. This transition offers several key advantages:
1. Safety: Solid-state batteries are much safer than conventional lithium-ion batteries, as they eliminate the risk of leakage or thermal runaway. This makes them ideal for use in electric vehicles (EVs) and other high-energy applications.
2. Higher Energy Density: Solid-state batteries can provide significantly higher energy density, meaning they can store more energy in the same amount of space. This leads to longer-lasting power in devices and vehicles without increasing size or weight.
3. Faster Charging: Due to the nature of the solid electrolyte, these batteries are capable of faster charging speeds, which could dramatically reduce charging times for electric vehicles and other battery-powered devices.
4.Longer Lifespan: Solid-state batteries tend to have longer cycles, meaning they can be charged and discharged many more times than their liquid-based counterparts without significant degradation. This makes them an ideal choice for long-term energy storage solutions.
5. Temperature Stability: Solid-state batteries can perform better in extreme temperatures, both hot and cold, compared to traditional batteries. This expands their potential applications in a wide range of environments and industries.
While solid-state batteries are widely regarded as the next big leap in energy storage, there are challenges related to scaling up production and ensuring cost-effectiveness. This is where semi-solid-state batteries come into play. By combining the best of both solid and liquid-state technology, semi-solid-state batteries aim to provide the benefits of solid-state technology—such as improved safety and energy density—while still utilizing some aspects of traditional lithium-ion battery chemistry for easier manufacturing processes and lower costs.
At the meeting, both CROSTORION and Welion discussed how these semi-solid-state batteries could serve as a bridge between current lithium-ion technology and the fully solid-state systems that are expected to dominate the future of energy storage. This hybrid solution could help accelerate the adoption of solid-state batteries in various industries, including automotive, consumer electronics, and renewable energy.
As part of its ongoing commitment to advancing energy storage technology, CROSTORION is excited to collaborate with Welion, one of the world's leading companies in solid-state battery development. With its state-of-the-art production facilities and highly skilled R&D team, Welion continues to push the boundaries of what is possible in energy storage technology.
Through this partnership, CROSTORION aims to integrate semi-solid-state and solid-state battery cells into its energy storage products. By leveraging Welion's cutting-edge solid-state technology, CROSTORION is positioned to enhance the performance, safety, and longevity of its products, offering customers more efficient and reliable energy storage solutions.
This collaboration marks a significant step forward in the development of next-generation energy storage technologies. As both companies continue to innovate and explore new possibilities in battery technology, they are poised to make a lasting impact on the global energy landscape.
With the promise of solid-state and semi-solid-state batteries revolutionizing industries, the partnership between CROSTORION and Welion will help drive the adoption of advanced energy storage solutions, contributing to a sustainable and energy-efficient future.