Energy density twice that of LFP battery! Major breakthrough in US Factorial Energy's solid-state battery

SMM July 10 News:

Factorial Energy, a US-based solid-state battery startup, and global automotive giant Stellantis recently announced a major breakthrough in their jointly developed large-scale solid-state battery cell using FEST (Factorial Electrolyte System Technology). The energy density of this battery cell reaches 375Wh/kg, nearly double that of traditional LFP batteries.

The battery can be charged from 15% to 90% in just 18 minutes and operates stably within a temperature range of -30°C to 45°C, challenging the traditional perception of poor lithium battery performance at low temperatures. Stellantis plans to be the first to apply this battery in its vehicles by 2026, aiming to reshape the battery market dominated by Asian companies.

The core of Factorial's breakthrough technology lies in its innovative Solstice™, a sulfide-based all-solid-state electrolyte material. Unlike the liquid electrolytes used in traditional lithium-ion batteries, this solid-state electrolyte not only enhances energy density but also significantly reduces the risk of fire. An industry expert stated that if commercialized, this technology would reshape the competitive landscape of the EV industry.

The FEST technology employs an innovative dry coating process, eliminating the use of harmful solvents and high-energy-consuming steps in traditional battery manufacturing, making production more environmentally friendly and potentially reducing costs. Factorial can produce this solid-state battery with minimal modifications to its existing lithium-ion battery production lines, indicating significant potential for large-scale production.

Factorial aims to develop a battery that is both safe and high-performance while maintaining compatibility with existing manufacturing infrastructure. Currently, the technology has successfully passed over 600 charge-discharge cycle tests, proving its stability and durability.

For consumers, this technology promises longer driving ranges, shorter charging times, and higher safety for future EVs. With current technological capabilities, an EV equipped with a 90kWh FEST battery can theoretically travel 966 kilometers, with a weight and volume reduction of approximately 30% compared to traditional lithium-ion battery packs. Stellantis invested $75 million in Factorial in 2021, with plans to launch a demonstration vehicle equipped with solid-state batteries by 2026, potentially including the highly anticipated Dodge Charger Daytona electric sports car. Stellantis hopes to gain an edge over competitors such as BYD, Tesla, and CATL through this innovation, breaking the long-held market dominance of Asian battery giants.

SMM Analysis:
Although solid-state batteries offer excellent performance, enhanced safety, and higher energy density, they still face numerous challenges in transitioning from technical validation to large-scale commercialization. Currently, the global solid-state battery sector is highly competitive. As a startup, Factorial may still need time to catch up with industry giants like Toyota, CATL, and BYD, even if it possesses their capabilities.