Company Overview: Beijing WeLion New Energy Technology Co., Ltd.
Beijing WeLion New Energy Technology Co., Ltd. (commonly known as WeLion or WELION) is a high-tech enterprise headquartered in Beijing, China. Founded in 2016, the company has emerged as a prominent global pioneer in the research, development, and mass production of hybrid semi-solid-state and fully solid-state lithium battery cells. Emerging from deep scientific roots—with foundational technology tracing back to collaborative research with the Max Planck Institute for Solid State Research and prominent figures like solid-state battery pioneer Professor Chen Liquan—WeLion focuses heavily on intrinsic safety, high energy density, and wide temperature adaptability.
What the Company Does
WeLion operates at the forefront of advanced energy storage innovation, bridging the gap between conventional liquid-electrolyte lithium-ion batteries and next-generation fully solid-state systems. Traditional lithium-ion cells use flammable liquid electrolytes that present risks of leakage, internal short-circuiting, and thermal runaway. WeLion addresses these vulnerabilities by developing hybrid semi-solid and solid-state electrolyte technologies that drastically reduce the volume of flammable liquids while maximizing ionic conductivity and structural stability.
The company's core operational pillars include:
* Advanced R&D: Over 30% of WeLion's workforce is dedicated to research and development, operating across specialized innovation bases to advance solid-state electrolyte materials, ultra-thin metallic lithium foils, and advanced ionic conductive separators.
* Mass Manufacturing: WeLion operates multiple large-scale production facilities across China (including locations in Beijing, Zibo, Huzhou, and Shenzhen) to scale manufacturing capacity for automotive and energy storage systems.
* System Integration and Commercialization: The company collaborates closely with major global automotive original equipment manufacturers (OEMs) and energy infrastructure providers to integrate high-performance cells directly into commercial electric vehicles, light electric vehicles (LEVs), and large-scale grid storage.
Products and Services Offered
WeLion offers an extensive portfolio of advanced battery cells, hybrid energy solutions, and core material architectures designed for high-performance mobile and stationary applications.
1. Semi-Solid-State and Solid-State Battery Cell Lines
WeLion categorizes its primary cell offerings based on chemical compositions tailored to distinct performance requirements:
* NMC+ Products (High-Energy Performance Cells): Designed as high-power "sprinters," these cells achieve industry-leading gravimetric energy densities exceeding 360 Wh/kg and volumetric densities up to 800 Wh/L. They offer high C-rate performance (discharge rates up to 7C with pulses up to 10C) and long lifespans, making them ideal for high-performance electric vehicles, electric motorcycles, and electric vertical takeoff and landing (eVTOL) aircraft.
* NMC Products (Versatile Allrounder Cells): Delivering gravimetric densities greater than 250 Wh/kg and volumetric densities up to 600 Wh/L, these cells offer robust lifespans exceeding 1,000 cycles at deep depths of discharge (DOD). They are engineered to provide cost-efficient, highly safe energy storage for commercial and offshore applications.
* LFP Products (Endurance Performer Cells): Utilizing lithium iron phosphate chemistry combined with solid-liquid hybrid electrolytes, these cells deliver extraordinary lifespans exceeding 6,000 cycles while retaining over 80% capacity. They support rapid charging within one hour across wide operational temperature ranges (from -20°C to 60°C) and are targeted toward heavy-duty commercial fleets and large-scale stationary energy storage systems (ESS).
2. Automotive Traction Batteries and Major Supply Projects
WeLion is globally recognized for commercializing the world's first mass-produced semi-solid-state traction battery packs for passenger electric vehicles.
* NIO Partnership: WeLion partnered with EV manufacturer NIO to supply a groundbreaking 150 kWh semi-solid-state battery pack. Utilizing 360 Wh/kg cells, this pack allows select NIO models (such as the ET7 sedan) to achieve a driving range exceeding 1,000 kilometers on a single charge while matching the physical dimensions of standard lower-capacity conventional packs.
* Light Electric Vehicles and Cylindrical Formats: The company supplies advanced cylindrical cells (such as the 4695 format) for next-generation urban passenger cars and electric bicycles, working alongside automotive brands like JAC Yiwei.
3. Energy Storage Systems (ESS)
Beyond mobility, WeLion provides high-capacity, ultra-safe battery modules and containerized solutions for grid stability and renewable energy integration. Its semi-solid LFP cells anchor major infrastructure installations—such as large-scale grid storage projects designed to optimize peak shaving, load balancing, and long-term renewable energy storage with maximum thermal stability and fire safety.
4. Core Materials and Technical Integration Services
In addition to complete battery cells and packs, WeLion provides upstream and integration support:
* Proprietary Materials: Supply of high-purity solid-state composite electrolytes, ultra-thin metallic lithium foils, and specialized pre-lithiation components.
* Engineering and System Integration Support: Technical consulting and electrical architecture integration to help global clients seamlessly transition from liquid lithium-ion setups to safe, high-density semi-solid and fully solid-state systems.
Please note: This information is generated by AI. For legal use, verify with company sources.
