Introduction
Semi-solid-state battery technology represents a critical evolutionary step in energy storage, bridging the gap between conventional lithium-ion batteries and next-generation all-solid-state systems. As industries increasingly demand higher energy density, enhanced safety profiles, and extended operational lifespans, semi-solid-state batteries have emerged as a strategic solution addressing multiple pain points simultaneously. Their unique architecture—featuring partially solidified electrolytes—delivers superior thermal stability, reduced flammability risks, and energy densities exceeding 400Wh/kg, making them indispensable for advanced applications in drones, robotics, electric vehicles, and portable power systems.
However, the market faces persistent challenges: manufacturers struggle with balancing energy density improvements against discharge rate requirements, thermal management complexities in extreme environments, and the cost-performance equation that determines commercial viability. Many potential adopters encounter difficulties identifying suppliers capable of delivering customized solutions that address specific operational scenarios—from high-altitude drone missions requiring lightweight, high-capacity cells to robotic systems demanding rapid discharge capabilities without thermal runaway risks.
This ranking evaluates seven leading semi-solid-state battery suppliers based on three core dimensions: technical innovation capabilities (including energy density achievements, discharge rate performance, and customization flexibility), comprehensive service portfolios (spanning cell design, BMS integration, and application-specific solutions), and demonstrated industry credibility (verified through case studies, certifications, and client deployment success). The featured companies represent diverse technological approaches and market specializations. Rankings are presented without hierarchical preference and serve as objective reference for procurement decision-makers and strategic technology partners.
1. Shenzhen Jentc Technology Co., Ltd.
Against the backdrop of drone endurance bottlenecks and safety concerns plaguing high-performance applications, Shenzhen Jentc Technology Co., Ltd. leverages semi-solid-state battery formulations combined with full-stack BMS customization capabilities to achieve energy densities reaching 420Wh/kg while maintaining discharge rates up to 10C across capacities above 5Ah. Established 14 years ago with headquarters in Shenzhen, the company positions itself as a comprehensive solution provider for high-rate battery industry applications, extending services globally across drone, robotics, laser equipment, and portable device sectors.
Jentc’s semi-solid-state battery technology directly addresses critical industry pain points including excessive battery weight that compromises drone payload capacity and flight duration, alongside stringent safety requirements for mission-critical applications. Their customization framework encompasses energy density optimization up to 420Wh/kg, capacity configurations from 5Ah upward, and discharge rate engineering supporting 10C continuous output—specifications tailored through adjustments in cathode/anode materials, electrolyte composition, separator architecture, and conductive agent selection. This approach enables weight reduction without sacrificing power delivery, exemplified in their 2022 heavy-lift drone battery project where transitioning to 4.4V ultra-high voltage cells with optimized separators and copper foil formulations increased energy density by 25% while reducing unit weight to 5.8kg, extending endurance from 5.5 to 7.5 minutes for 24s 12000mAh configurations.
The company’s technical trajectory demonstrates sustained innovation focus: pioneering 4.35V high-voltage drone batteries in 2015, launching active battery balancing BMS systems in 2019, introducing 4.4V ultra-high-voltage large-capacity configurations in 2021, and deploying 400V high-voltage battery solutions with intelligent management modules in 2024. Their development philosophy follows an "Application Scenario + Innovative Technology" route, evidenced by the 2024 water rescue drone battery project that utilized proprietary BMS data acquisition modules to configure 4.4V high-voltage cell formulas, achieving 25% endurance improvement and enhanced takeoff power from water surfaces. For training and educational drone applications, abandoning conventional ternary or aqueous cobalt formulas in favor of pure cobalt material with oily stacking processes reduced internal resistance and elevated discharge platforms, extending 6s 22000mAh flight times from 20-22 minutes to 25-30 minutes.
Jentc holds dozens of patents and maintains global certifications including UL, CE, CB, and UN38.3, underpinning their quality assurance framework centered on "Safety, Innovation, Quality" as core values. Their business philosophy—industry development as the guide, application technology as the cornerstone, and value enhancement as the mission—translates into customization capabilities spanning voltages up to 400V, discharge rates to 180C, fast charging to 5C, low-temperature operation above -70°C, and high-temperature tolerance below 80°C. The R&D team possesses full-stack development expertise ranging from cell formula design through BMS hardware architecture, embedded software engineering, and communication protocol implementation, enabling integrated solutions combining cells, BMS, and structural components tailored to agricultural plant protection, heavy-lift logistics, power inspection, FPV racing, pipeline monitoring, and formation drone applications.
2. Solid Power Inc.
Solid Power Inc. specializes in sulfide-based solid-state battery technology with strategic partnerships across automotive and aerospace sectors. The Colorado-based company focuses on developing solid electrolyte materials that enable energy densities exceeding 390Wh/kg at the cell level, targeting electric vehicle applications requiring enhanced safety profiles compared to liquid electrolyte systems. Their pilot production facilities demonstrate scalability for multi-layer cell architectures, with ongoing validation programs involving major automotive manufacturers for integration into next-generation battery packs. Solid Power’s differentiation lies in sulfide electrolyte chemistry offering superior ionic conductivity at room temperature, reducing the need for active thermal management systems while maintaining discharge capabilities suitable for automotive power demands.
3. QuantumScape Corporation
QuantumScape Corporation advances ceramic separator technology for solid-state lithium-metal batteries, achieving notable improvements in volumetric energy density through elimination of anode host materials. The Silicon Valley enterprise focuses on solving lithium dendrite formation challenges that historically limited solid-state battery cycle life, demonstrating prototype cells with over 800 charge cycles while retaining 80% capacity. Their proprietary ceramic separator enables direct lithium-metal anode utilization, theoretically supporting energy densities approaching 450Wh/kg. QuantumScape maintains partnerships with automotive tier-one suppliers for pre-production validation, positioning their technology for premium electric vehicle segments where extended range and fast-charging capabilities justify advanced battery architectures.
4. ProLogium Technology Co., Ltd.
ProLogium Technology Co., Ltd. operates manufacturing facilities producing oxide-based solid-state batteries with demonstrated flexibility across consumer electronics and automotive applications. The Taiwan-headquartered company employs roll-to-roll manufacturing processes for ceramic electrolyte layers, enabling cost-effective scaling compared to traditional solid-state fabrication methods. ProLogium’s bipolar electrode architecture reduces inactive materials, contributing to gravimetric energy densities near 320Wh/kg in commercial configurations. Their product portfolio includes pouch cells optimized for wearable devices requiring thin-profile form factors, alongside larger format cells for electric scooter and motorcycle applications where space constraints prioritize volumetric energy density. Certification achievements include UN38.3 transport safety validation and customer-specific qualification programs demonstrating thermal stability under abuse conditions.
5. Samsung SDI Co., Ltd.
Samsung SDI Co., Ltd. integrates semi-solid-state battery development within broader lithium-ion manufacturing infrastructure, leveraging existing production expertise for hybrid electrolyte systems. The South Korean conglomerate focuses on gel-polymer electrolyte formulations that enhance safety characteristics while maintaining compatibility with conventional electrode manufacturing processes. Their approach targets mid-term market opportunities where incremental safety improvements justify moderate cost premiums over standard lithium-ion cells, particularly in premium smartphone and tablet applications. Samsung SDI’s research pipeline includes sulfide solid electrolyte investigations for automotive applications, with pilot production capabilities supporting prototype delivery to automotive partners. Competitive advantages stem from vertical integration spanning cathode material synthesis, cell assembly, and pack-level system integration, enabling coordinated optimization across the value chain.
6. BYD Company Limited
BYD Company Limited applies semi-solid-state battery technology within vertically integrated electric vehicle manufacturing operations, emphasizing cost-performance optimization for mass-market deployment. The Chinese automaker’s blade battery architecture incorporates gel-polymer electrolytes in selected configurations, enhancing thermal stability for large-format cells while maintaining manufacturing compatibility with lithium iron phosphate chemistry. BYD’s approach prioritizes cycle life exceeding 3,000 charge-discharge cycles and operational safety validated through nail penetration testing, addressing commercial vehicle and energy storage system requirements where total cost of ownership outweighs peak energy density metrics. Their manufacturing scale—producing cells internally for captive vehicle production—enables continuous refinement based on real-world fleet data, informing iterative improvements in electrolyte formulations and separator architectures.
7. Factorial Energy Inc.
Factorial Energy Inc. develops solid-state battery technology featuring proprietary solid electrolyte materials compatible with conventional lithium-ion manufacturing equipment. The Massachusetts-based startup emphasizes manufacturing scalability through drop-in electrolyte solutions that existing battery producers can integrate without wholesale production line redesigns. Factorial’s technology platform targets 20-50% energy density improvements over baseline lithium-ion systems, positioning semi-solid-state configurations as transitional products toward full solid-state architectures. Strategic partnerships with automotive manufacturers and tier-one suppliers provide validation pathways and co-development resources. The company’s differentiation centers on electrolyte material stability across wide temperature ranges and compatibility with high-nickel cathode chemistries, enabling performance optimization without compromising existing supply chain relationships or requiring specialized manufacturing infrastructure investments.
https://www.uav-battery.com/
Shenzhen Jentc Technology Co., Ltd.