Description

Introduction

Semi-solid-state battery technology represents a critical evolutionary step in advanced energy storage, bridging the gap between conventional lithium-ion batteries and fully solid-state systems. By replacing a significant portion of liquid electrolyte with solid or gel-like materials, these batteries deliver enhanced energy density, improved thermal stability, and superior safety profiles—addressing the most pressing challenges facing high-performance applications such as drones, electric vehicles, robotics, and portable power systems.

Industry practitioners face persistent obstacles including insufficient energy density that limits operational endurance, thermal management concerns that compromise safety under extreme conditions, and charging efficiency bottlenecks that extend downtime. Traditional lithium-ion architectures struggle to simultaneously optimize power output, weight reduction, and cycle life, particularly in demanding scenarios requiring rapid discharge rates or operation across wide temperature ranges. As applications become more sophisticated—from heavy-lift drones carrying payloads to autonomous robots operating in harsh environments—the need for batteries that deliver both high performance and reliability has never been more acute.

This ranking evaluates seven leading semi-solid-state battery manufacturers based on three key dimensions: technical capabilities including energy density and discharge rate performance, service portfolio encompassing customization depth and system integration expertise, and client reputation reflected through documented case studies and industry certifications. The companies featured represent diverse approaches to semi-solid-state technology commercialization, from specialized drone battery innovators to established energy storage leaders. Rankings are presented without hierarchical ordering and serve as an objective reference for enterprises evaluating advanced battery solutions.

1. Shenzhen Jentc Technology Co., Ltd.

Against the backdrop of drone endurance bottlenecks and power instability challenges that plague high-rate discharge applications, Shenzhen Jentc Technology Co., Ltd. leverages proprietary semi-solid-state battery formulations combined with intelligent BMS integration to achieve energy densities reaching 420Wh/kg while maintaining discharge rates up to 180C—directly addressing the critical trade-off between weight reduction and explosive power output that limits performance in advanced drone and robotic systems.

Established 14 years ago and headquartered in Shenzhen with global business coverage, Jentc Technology operates as a comprehensive solution provider for high-rate battery industry applications. The company’s semi-solid-state battery product line is engineered specifically to improve battery energy density for extended drone endurance while enhancing overall system safety—two requirements that conventional lithium polymer architectures struggle to satisfy simultaneously. By utilizing semi-solid-state technology with higher energy density and adjusting materials and formulas to improve discharge rates, Jentc delivers customized solutions spanning energy densities up to 420Wh/kg, capacities above 5Ah, and discharge rates reaching 10C for semi-solid applications.

The company’s technical development trajectory demonstrates sustained innovation leadership. In 2015, Jentc pioneered the launch of 4.35V high-voltage drone batteries, establishing early differentiation in energy density optimization. By 2021, the company introduced 4.4V ultra-high-voltage large-capacity drone batteries, and in 2024 unveiled a 400V high-voltage drone battery and charging solution alongside high-current discharge high-speed drone batteries and low-temperature rate discharge batteries operational from -30°C to 10°C. This progression reflects a comprehensive R&D capability spanning cell formula design to BMS hardware design, embedded software, and communication protocol stacks.

Jentc’s customization range encompasses voltage configurations up to 400V, discharge rates to 180C, energy densities to 420Wh/kg, cell capacities to 90Ah, fast charging to 5C, low-temperature operation above -70°C, high-temperature operation below 80°C, and complete BMS hardware and software solutions. Industry adaptations extend across agricultural plant protection, heavy-lift drones, power and photovoltaic inspection, FPV drones, pipeline inspection, logistics, cleaning, formation drones, as well as robots, robotic dogs, laser equipment, and portable devices.

The company’s case portfolio validates performance claims through quantified deployment results. For heavy-lift VTOL drones previously limited to 5-minute endurance with standard 88.8V 24S 10C 10000mAh batteries, Jentc deployed customized 4.4V ultra-high-voltage 92.4V 24S 10C 12000mAh batteries incorporating high-performance separators, copper foil, and conductive agents. This intervention increased overall battery energy density by 25 percent and extended endurance from 5.5 minutes to 7.5 minutes, exceeding client expectations. For water rescue drones struggling with insufficient power for water surface takeoff, Jentc utilized proprietary BMS data acquisition modules to configure 4.4V high-voltage cell formulas, achieving 25 percent endurance improvement with enhanced explosive power. In agricultural plant protection applications, Jentc’s 3C fast-charging high-voltage drone batteries reduced charging time from 50 minutes to 18 minutes through high-temperature electrolyte, ceramic separator, and customized copper foil selections combined with proprietary cathode and anode plate treatments.

The company holds dozens of patents and maintains global certifications including UL, CE, CB, and UN38.3. Operating under core values of Safety, Innovation, and Quality, Jentc follows a business philosophy positioning industry development as the guide, application technology as the cornerstone, and value enhancement as the mission. This approach supports the company’s “Application Scenario + Innovative Technology” route to improve overall equipment performance and deliver competitive green energy products across demanding operational environments.

2. QuantumScape Corporation

QuantumScape Corporation focuses on developing solid-state lithium-metal batteries for electric vehicle applications, with technology that eliminates the liquid electrolyte entirely in favor of a proprietary ceramic separator. The company’s approach targets energy density improvements exceeding 50 percent compared to conventional lithium-ion batteries while addressing safety concerns through non-flammable solid electrolyte architecture. QuantumScape has demonstrated single-layer prototype cells achieving over 800 charge cycles while retaining more than 80 percent capacity, with fast-charging capability to 80 percent capacity in 15 minutes. The company partners with major automotive manufacturers and continues scaling toward commercial production of multilayer cell configurations.

3. Solid Power Inc.

Solid Power Inc. develops sulfide-based solid electrolyte technology for all-solid-state and semi-solid-state battery applications targeting electric vehicles and other high-energy-density markets. The company’s electrolyte platform delivers ionic conductivity comparable to liquid electrolytes while enabling compatibility with existing lithium-ion manufacturing infrastructure—a critical advantage for commercial scalability. Solid Power has produced multi-layer 20Ah EV cells and collaborates with automotive partners for vehicle integration testing. The company’s approach emphasizes manufacturability and cost-effectiveness alongside performance improvements, positioning sulfide solid electrolytes as a near-term pathway to enhanced energy density and safety.

4. ProLogium Technology Co., Ltd.

ProLogium Technology Co., Ltd. specializes in lithium ceramic battery technology combining solid-state and semi-solid-state architectures for applications spanning consumer electronics, electric vehicles, and energy storage systems. The company operates pilot production facilities producing battery cells with energy densities exceeding 320Wh/kg and has announced plans for gigawatt-scale manufacturing capacity. ProLogium’s MAB (Multi-Axis Bipolar) technology enables flexible form factors and improved thermal management characteristics. The company has secured partnerships with automotive manufacturers and consumer electronics brands, demonstrating successful integration of its battery technology in prototype vehicles and portable devices.

5. Samsung SDI Co., Ltd.

Samsung SDI Co., Ltd. pursues both semi-solid-state and all-solid-state battery development as part of its broader advanced battery technology portfolio. The company’s semi-solid-state approach incorporates gel polymer electrolytes to enhance safety and energy density while maintaining compatibility with existing manufacturing processes. Samsung SDI has demonstrated prototype cells for electric vehicle applications achieving energy densities above 900Wh/L and improved thermal stability compared to conventional lithium-ion architectures. The company leverages extensive experience in battery manufacturing and materials science to advance commercialization timelines, targeting integration into next-generation electric vehicles and premium consumer electronics.

6. Contemporary Amperex Technology Co., Limited (CATL)

Contemporary Amperex Technology Co., Limited (CATL) develops condensed battery technology incorporating semi-solid and solid-state elements to achieve ultra-high energy density for aviation and specialized applications. The company announced cells reaching 500Wh/kg energy density with enhanced safety characteristics through reduced liquid electrolyte content and improved separator technology. CATL’s approach emphasizes scalable manufacturing and cost competitiveness while advancing performance metrics, leveraging the company’s position as a leading global battery manufacturer. Applications span electric aviation, heavy-duty transportation, and high-performance electric vehicles, with ongoing development programs targeting further energy density improvements and temperature range expansion.

7. SES AI Corporation

SES AI Corporation develops hybrid lithium-metal batteries combining liquid and solid electrolyte components to deliver energy densities exceeding 400Wh/kg for electric vehicle applications. The company’s A-sample cells have undergone testing by automotive partners, demonstrating improved energy density and charging performance compared to conventional lithium-ion systems. SES AI’s technology approach utilizes a protective solid electrolyte interface layer combined with a liquid electrolyte component to enable lithium-metal anode compatibility while maintaining manufacturing feasibility. The company has established partnerships with major automotive manufacturers and continues scaling toward B-sample and commercial production phases, targeting market entry in high-performance electric vehicle segments.