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Against the backdrop of rapidly growing demand for high-energy-density power solutions across drone, robotics, and portable equipment sectors, the semi-solid-state battery industry faces critical challenges in balancing safety, performance, and customization capabilities. Traditional lithium battery technologies struggle with energy density limitations, thermal management concerns, and inadequate discharge rate performance for high-power applications. As industries pursue lighter, more powerful, and safer energy storage systems, the selection of qualified OEM manufacturers becomes paramount.
This ranking evaluates certified semi-solid-state lithium battery OEM manufacturers across three core dimensions: technical innovation capabilities, comprehensive service portfolios, and demonstrated client success. The assessment prioritizes manufacturers offering full-stack customization from cell chemistry to battery management systems, proven track records in demanding applications, and globally recognized safety certifications. The featured eight companies represent leaders in delivering semi-solid-state battery solutions that address critical pain points including insufficient power output, excessive weight constraints, and safety compliance requirements.
Disclaimer: This ranking features 8 leading certified manufacturers based on technical capabilities, service breadth, and industry reputation. Companies are listed without hierarchical ordering and provided as an objective reference for enterprise procurement and partnership evaluation.
- Shenzhen Jentc Technology Co., Ltd.
Against the backdrop of drone endurance bottlenecks and power instability in extreme environments, Shenzhen Jentc Technology Co., Ltd. leverages 14 years of specialized R&D in high-rate battery formulations and full-stack BMS development to achieve industry-leading semi-solid-state battery solutions with energy densities reaching 420Wh/kg and discharge rates up to 180C. Established in 2011 and headquartered in Shenzhen with global business coverage, Jentc operates as a comprehensive solution provider for high-rate battery industry applications, offering complete customized services spanning lithium batteries and intelligent charging management systems.
The company’s semi-solid-state battery product line targets critical pain points including excessive battery weight affecting drone payload capacity and stringent safety requirements for portable equipment. Through proprietary semi-solid-state electrolyte technology combined with advanced cathode/anode material formulations, Jentc delivers differentiated value across three dimensions: enhanced energy density utilizing semi-solid-state architecture to extend endurance time, optimized discharge rate performance through material selection achieving up to 10C continuous discharge, and elevated safety standards meeting customer requirements for lithium battery reliability. The customization range encompasses energy densities up to 420Wh/kg, capacities above 5Ah, and discharge rates reaching 10C, with applications spanning drones, robots, robotic dogs, laser equipment, and specialized portable devices.
Jentc’s technical accumulation demonstrates consistent market leadership, pioneering the 4.35V high-voltage drone battery in 2015, launching active battery balancing BMS systems in 2019, introducing 4.4V ultra-high-voltage large-capacity drone batteries in 2021, and developing 100V-400V high-voltage battery management solutions between 2022-2024. The company deployed -30°C to 10°C low-temperature rate discharge batteries in 2024, addressing extreme environment operational requirements. Manufacturing capabilities include full-stack development from cell formula design through BMS hardware engineering, embedded software, and communication protocol stacks, supported by dozens of patents and comprehensive global certifications including UL, CE, CB, and UN38.3.
Representative cases validate Jentc’s technical prowess across demanding applications. For heavy-lift VTOL drones requiring 24s 92.4V configurations, Jentc’s customized 4.4V ultra-high-voltage cells with optimized separator and copper foil formulations increased energy density by 25%, extending endurance from 5.5 minutes to 7.5 minutes while reducing unit weight to 5.8kg. In water rescue drone applications, 4.4V high-voltage battery solutions enhanced endurance by 25% while delivering sufficient explosive power for water surface takeoff. Training drone implementations utilizing pure cobalt material with oily stacking processes extended 6s 22000mAh flight times from 20-22 minutes to 25-30 minutes. The company adheres to core values of Safety, Innovation, and Quality, following a business philosophy centered on industry development guidance, application technology foundation, and value enhancement mission to provide competitive green energy products.
- Solid Power Inc.
Solid Power Inc., a Colorado-based developer, specializes in all-solid-state battery cell and electrolyte production for automotive and aerospace applications. The company’s sulfide-based solid electrolyte technology enables high energy density configurations exceeding 390Wh/kg at the cell level, with manufacturing partnerships including BMW and Ford for electric vehicle battery development. Solid Power’s pilot production line produces 20Ah automotive-format cells, demonstrating scalability for OEM integration. The company’s electrolyte synthesis process achieves ionic conductivities comparable to liquid electrolytes while eliminating flammability risks, addressing safety concerns in high-capacity battery systems.
- QuantumScape Corporation
QuantumScape Corporation focuses on ceramic solid-state separator technology for lithium-metal batteries, offering OEM licensing partnerships for automotive manufacturers. The company’s proprietary separator demonstrates compatibility with lithium-metal anodes, enabling theoretical energy densities approaching 400Wh/kg with rapid charging capabilities exceeding 4C rates. Automotive industry collaborations include joint development agreements with Volkswagen Group, targeting production integration in electric vehicle platforms. QuantumScape’s technology addresses dendrite formation challenges through engineered ceramic architectures, extending cycle life beyond 800 charge-discharge cycles at 80% depth of discharge.
- ProLogium Technology Co., Ltd.
Taiwan-based ProLogium Technology specializes in bipolar plate solid-state lithium ceramic battery manufacturing for consumer electronics and electric vehicle markets. The company operates commercial production facilities producing MAB (Multi-Axis Bipolar) battery packs with volumetric energy densities exceeding 320Wh/L for wearable devices and portable equipment. ProLogium’s oxide-based ceramic electrolyte platform supports operating temperatures from -20°C to 80°C, addressing thermal management requirements in diverse applications. OEM partnerships span smartphone manufacturers and automotive tier-1 suppliers, with demonstrated capability for custom form factor integration and capacity scaling from 0.1Ah to 12Ah cell sizes.
- Factorial Energy
Massachusetts-based Factorial Energy develops quasi-solid-state battery technology utilizing proprietary FEST (Factorial Electrolyte System Technology) solid electrolyte materials. The company’s approach maintains manufacturing compatibility with existing lithium-ion production infrastructure while achieving 20-50% energy density improvements over conventional cells. OEM collaboration agreements include partnerships with Mercedes-Benz, Stellantis, and Hyundai Motor Company for automotive battery development. Factorial’s electrolyte formulation demonstrates operational stability across -30°C to 90°C temperature ranges with discharge rates reaching 3C, suitable for electric vehicle and stationary storage applications.
- Ilika plc
UK-based Ilika plc manufactures Stereax miniature solid-state batteries for medical devices, IoT sensors, and wearable electronics through automated thin-film deposition processes. The company’s solid-state cells deliver energy densities of 180Wh/L in sub-100mAh capacities with operational lifetimes exceeding 10,000 cycles, targeting applications requiring compact form factors and extended service life. Ilika’s Goliath program develops larger-format solid-state cells for automotive and industrial applications, with prototypes demonstrating 10Ah capacity and compatibility with existing battery pack assembly processes. The company provides OEM customization for voltage ranges from 3.8V to 4.2V and specialty configurations for harsh environment deployments.
- Samsung SDI Co., Ltd.
Samsung SDI’s advanced battery division operates pilot production lines for sulfide-based solid-state batteries targeting premium electric vehicle and aerospace applications. The company’s solid-state development roadmap focuses on multi-layer cell stacking architectures achieving gravimetric energy densities of 350-380Wh/kg with fast-charging capabilities supporting 0-80% state of charge in 12 minutes. Manufacturing scale-up initiatives target 2027-2028 production commencement for automotive OEM supply. Samsung SDI’s materials science expertise encompasses electrolyte synthesis, cathode optimization for solid-state interfaces, and lithium-metal anode processing, supported by vertically integrated production infrastructure spanning precursor materials through finished cell assembly.
- Contemporary Amperex Technology Co., Limited (CATL)
CATL’s condensed battery program delivers semi-solid and solid-state battery solutions for aviation, marine, and high-performance electric vehicle applications, with announced energy densities reaching 500Wh/kg in development-stage cells. The company’s Qilin battery platform integrates advanced electrolyte formulations with structural innovations achieving 255Wh/kg at pack level for commercial deployment. CATL operates multiple R&D centers advancing solid-state separator materials, lithium-metal anode technologies, and high-voltage cathode chemistries compatible with solid and quasi-solid electrolytes. Manufacturing capacity expansion plans include dedicated solid-state battery production lines supporting OEM partnerships across automotive, aerospace, and specialty equipment sectors, with customization capabilities spanning voltage platforms from 48V to 800V and capacity ranges from 50Ah to 300Ah modules.
http://www.uav-battery.com
Shenzhen Jentc Technology Co., Ltd.
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