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StoreDot, a pioneer in extreme fast charging (XFC) battery technology, has successfully moved its innovative 4695 cylindrical cells from development to commercialization. In a major step forward for the electric vehicle (EV) industry, the company, in collaboration with its partner Kumyang, is now shipping volume samples of its validated XFC cells to global automotive original equipment manufacturers (OEMs). This development signals the technology’s readiness for mass production and adoption.
Key Highlights
- StoreDot and partner Kumyang have achieved a successful large-scale production run of 4695 XFC cylindrical cells.
- The company is now shipping volume samples to global EV OEMs, marking a shift to commercialization.
- The cells validated and exceeded all previously published specifications for extreme fast charging and energy density.
- StoreDot’s technology enables an EV to gain 100 miles of range in just five minutes of charging.
- The batteries are designed for a warranty of over 500,000 km and demonstrate exceptional durability.
A Milestone in EV Battery Production
The production of a large-scale batch of 4695 cells at Kumyang’s facility in Korea validates StoreDot’s XFC technology on a production scale. This achievement proves the technology is scalable and can be integrated into existing manufacturing lines to produce high-performance cells. For EV OEMs, this is a pivotal moment that clears the path for commercial adoption of batteries that can dramatically reduce charging times and address consumer range anxiety. The 4695 format is a key component in the global transition to EVs, and this milestone places StoreDot at the forefront of this evolution.
A Strong IP Foundation: The XFC Shield™
StoreDot’s industry-leading technology is protected by a robust and growing portfolio of patents known as the XFC Shield™. This strategic intellectual property covers the core components and systems that enable its extreme fast charging capabilities. StoreDot is the sole holder of numerous patents that protect its proprietary silicon-dominant anode chemistry, advanced cell design, and specialized electrolyte formulations. This strong IP position de-risks the path to mass production, providing a secure foundation for partnerships with global automotive manufacturers and ensuring a reliable supply chain.
Key Specifications and Performance
StoreDot’s cells deliver breakthrough performance that meets the stringent demands of the automotive industry.
Performance and Charging:
- Charging Speed: The technology allows an EV to add 100 miles (160 km) of range in about five minutes or charge from 10% to 80% in just 10 minutes.
- Charging Consistency: Unlike traditional batteries, XFC cells maintain a fast charging rate across various states of charge without the typical slowdown.
- Cycle Life: Lab tests show the cells can endure over 2,000 consecutive XFC cycles while retaining over 80% of their original capacity, far exceeding industry benchmarks.
- Durability: The batteries show no accelerated degradation from extreme fast charging when compared to slow-charged cells.
- Cold Weather Performance: The cells deliver consistent discharge performance in sub-zero temperatures and can charge up to 80% at 14°F (-10°C) at standard speeds.
Cell Technology and Design:
- Anode Chemistry: The cells utilize proprietary, silicon-dominant anodes to enable XFC without sacrificing energy density or battery longevity.
- Energy Density: The cells achieve a gravimetric energy density greater than 280 Wh/kg and a volumetric energy density over 800 Wh/L at the stack level.
- Form Factor: While this milestone focuses on the 4695 format, StoreDot’s XFC technology is compatible with various form factors, including pouch, prismatic, and 4680 cylindrical cells.
About StoreDot
StoreDot is a global pioneer and leader of extreme fast charging (XFC) battery technologies that are designed to overcome the critical barriers to EV adoption. The company is revolutionizing the electric vehicle experience with its “100-in-5” breakthrough, which delivers 100 miles of range in just five minutes of charging. StoreDot’s XFC technology is based on a unique silicon-dominant anode design that allows for a seamless transition into existing manufacturing lines. The company’s mission is to accelerate the transition to electric mobility for a cleaner, more sustainable future.
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