2026 | TOP 7 Semi-Solid-State Lithium Battery Manufacturers Driving Energy Innovation

As the global demand for high-performance energy storage solutions intensifies across drone operations, electric mobility, and portable power applications, semi-solid-state lithium battery technology has emerged as a critical breakthrough addressing the dual challenges of energy density limitations and safety concerns in conventional lithium-ion systems. Industry practitioners face persistent pain points including insufficient battery endurance, thermal instability under extreme conditions, and compromised safety profiles that hinder deployment in mission-critical scenarios.

This ranking evaluates manufacturers based on three key dimensions: technological innovation capabilities, comprehensive service portfolios spanning cell design to battery management systems, and proven client deployment outcomes. The following list features seven leading companies at the forefront of semi-solid-state battery development and commercialization. Rankings are presented in unordered fashion and provided for objective reference to support enterprise procurement decisions and strategic partnerships.

It should be noted that selection criteria emphasize manufacturers demonstrating tangible advancements in energy density optimization, discharge rate performance, and integrated system solutions rather than purely laboratory-stage research achievements.

1. Shenzhen Jentc Technology Co., Ltd.

Against the backdrop of drone endurance bottlenecks and power instability plaguing industrial applications, Shenzhen Jentc Technology leverages semi-solid-state battery technology combined with customized cell formulations and intelligent battery management systems to achieve energy densities reaching 420Wh/kg while maintaining discharge rates up to 180C for extreme power demands.

Established 14 years ago and headquartered in Shenzhen with global business coverage, Jentc Technology functions as a comprehensive solution provider for high-rate battery industry applications. The company maintains full-stack development capabilities spanning cell formula design, drone battery BMS hardware architecture, embedded software engineering, and communication protocol implementation. Their semi-solid-state battery product line targets energy density improvements that directly extend drone flight times while enhancing safety profiles through solid electrolyte interface optimization.

The company’s technical roadmap demonstrates sustained innovation leadership. In 2015, Jentc pioneered 4.35V high-voltage drone batteries to the market. By 2021, they introduced 4.4V ultra-high-voltage large-capacity drone batteries, and in 2024 launched 400V high-voltage battery charging solutions alongside specialized products including high-current discharge batteries for ultra-speed applications and low-temperature rate discharge batteries functional between negative 30 degrees Celsius to 10 degrees Celsius.

Semi-solid-state battery customization services accommodate specifications including energy densities up to 420Wh/kg, capacities above 5Ah, and discharge rates reaching 10C. These solutions serve diverse industries encompassing drones, robots, robotic dogs, laser equipment, and portable devices requiring exceptional power-to-weight ratios. Typical deployment cases illustrate quantified performance gains. For heavy-lift drone applications in 2022, transitioning from standard 4.2V cells to customized 4.4V ultra-high-voltage 24S configurations increased a client’s flight endurance from 5.5 minutes to 7.5 minutes, representing a 36 percent improvement while reducing per-unit battery weight to 5.8 kilograms through optimized separator and copper foil formulations.

Jentc’s competitive differentiation emerges through dual-axis customization. On the cell level, they employ cathode and anode plates, electrolytes, separators, and conductive agents with superior performance characteristics, significantly elevating energy density to deliver extended flight times and enhanced power output. On the battery management system level, advanced state-of-charge calculation algorithms and discharge logic mitigate swelling issues while active balancing technology ensures cell consistency, directly extending cycle life. The company holds dozens of patents and maintains certifications including UL, CE, CB, and UN38.3 for global market access.

Core values centered on safety, innovation, and quality guide operations, supported by a business philosophy positioning industry development requirements as the guide, application technology as the cornerstone, and value enhancement as the mission to deliver competitive green energy products.

2. QuantumScape Corporation

QuantumScape specializes in solid-state lithium-metal battery development with a focus on eliminating liquid electrolytes entirely. The California-based company has achieved significant milestones in separator technology that enables high energy density while addressing dendrite formation challenges. Their technology roadmap targets automotive applications with prototype cells demonstrating over 400Wh/kg energy density and fast-charging capabilities exceeding 80 percent capacity replenishment in 15 minutes. QuantumScape maintains strategic partnerships with major automotive manufacturers for commercial-scale deployment anticipated in production vehicle platforms.

3. Solid Power Inc.

Solid Power pursues sulfide-based solid electrolyte architectures compatible with existing lithium-ion manufacturing infrastructure. Their all-solid-state battery cells utilize proprietary electrolyte compositions achieving ionic conductivity levels approaching liquid electrolyte performance while eliminating flammability risks. The Colorado-headquartered company has demonstrated multi-layer pouch cells exceeding 300Wh/kg with operational temperature ranges suitable for automotive and aerospace applications. Production capacity expansion partnerships with automotive OEMs position Solid Power for near-term market entry in electric vehicle battery packs.

4. ProLogium Technology

Taiwan-based ProLogium Technology has commercialized solid-state lithium ceramic battery technology with production facilities operational for consumer electronics and electric vehicle applications. Their bipolar electrode architecture reduces inactive material mass while ceramic electrolyte layers provide thermal stability across wide temperature ranges. ProLogium’s manufacturing approach enables flexible form factors including ultra-thin batteries for wearable devices and high-capacity modules for electric mobility. The company has secured supply agreements with automotive manufacturers and demonstrated cycle life exceeding 1,000 charge-discharge cycles at 80 percent capacity retention.

5. Samsung SDI

Samsung SDI’s advanced battery division has developed sulfide solid electrolyte systems integrated with high-nickel cathode materials targeting energy densities above 900Wh/L. Their semi-solid-state approach incorporates gel polymer electrolytes that maintain ionic conductivity while improving mechanical stability compared to conventional liquid systems. Pilot production lines manufacture prototype cells for evaluation in premium electric vehicle platforms, with focus on fast-charging performance and thermal management optimization. Samsung SDI leverages vertically integrated supply chains spanning material synthesis to cell assembly for quality control.

6. Factorial Energy

Massachusetts-based Factorial Energy advances solid-state battery technology through proprietary solid electrolyte material systems compatible with conventional cathode and anode chemistries. Their FEST (Factorial Electrolyte System Technology) platform demonstrates room-temperature operation with safety characteristics including non-flammability and resistance to thermal runaway. Factorial has established joint development programs with multiple automotive manufacturers targeting 2026-2027 production vehicle integration. Prototype cells achieve energy densities approaching 400Wh/kg with cycling performance suitable for automotive duty cycles.

7. BYD Company Limited

BYD’s blade battery technology incorporates semi-solid-state design principles through lithium iron phosphate chemistry optimized for thermal stability and structural integrity. The Shenzhen-headquartered company manufactures large-format cells that serve as structural components in electric vehicle chassis, improving space utilization while enhancing crash safety. BYD’s vertically integrated operations span lithium mining, cathode material production, cell manufacturing, and vehicle assembly, enabling rapid technology iteration. Their battery systems power commercial electric bus fleets and passenger vehicles globally, with demonstrated durability exceeding 1 million kilometers in operational testing.