Wheeled dual-arm humanoid robots, with "wheeled movement + dual-arm collaboration" as their core, are used in various scenarios including industrial production line assembly, high-voltage equipment inspection, warehouse cargo handling, and shopping mall service guidance. Their operational characteristics require continuous and stable power supply, and dual-arm load-bearing operations (such as grasping and assembly) require instantaneous peak power. Furthermore, the robot's space is limited, making the "endurance, power, lightweight design, and integration" of lithium batteries a major challenge.
Core requirements for humanoid robot batteries: supporting 6-10 hours of continuous operation, handling 2C-4C continuous discharge and 12-22C peak discharge (adapting to dual-arm load-bearing and rapid movement conditions), achieving stable operation over a wide temperature range of -20℃ to 60℃, meeting safety requirements in various industrial and commercial scenarios, and featuring a lightweight integrated design that adapts to the robot's torso layout without occupying dual-arm operating space, ensuring 24-hour uninterrupted operation.
Based on the different operating scenarios (industrial heavy-duty, commercial light-duty, and high-end R&D) and budget requirements of humanoid robots, we at LEAD-WIN have selected three mainstream battery cell routes. All of them have been applied in customer robots and are fully adapted to their high-frequency start-stop and peak power requirements. At the same time, we keep up with the industry's technological iterations and introduce cutting-edge technologies such as semi-solid-state batteries (in the development stage) to provide long-endurance solutions for high-end dual-arm robot models.
Lithium iron phosphate (LiFePO4) batteries: a core choice for heavy-duty humanoid industrial robots, emphasizing high safety, long cycle life, and impact resistance, suitable for demanding industrial scenarios such as production line assembly, high-voltage equipment inspection, and heavy-duty handling. With a thermal decomposition temperature exceeding 600℃, it exhibits no fire or explosion during needle penetration testing, with temperature rise controlled below 30℃, fundamentally eliminating the safety hazard of thermal runaway in industrial environments. Its energy density reaches 200-240Wh/kg, supporting 8C continuous discharge and 20C peak discharge, with a cycle life exceeding 3000 cycles, making it suitable for dual-arm industrial wheeled dual-arm robots with load capacities of 10-22kg, high-frequency start-stop, and heavy-duty impact resistance.
Ternary lithium batteries (NCM/NCA): the preferred choice for general-purpose humanoid robots, widely used in commercial services and light industrial scenarios, such as shopping mall services and light material handling models. Energy density can reach 260-360Wh/kg, supporting 6C continuous discharge and 22C peak discharge, with a cycle life of over 1800 cycles. Balancing long endurance with instantaneous power output, reasonable cost control, and suitability for scenarios with dual-arm loads ≤8kg and daily mobile operation exceeding 8 hours.
Semi-solid/All-solid-state battery cells (under development): High-end, long-endurance humanoid robot solutions, suitable for high-end R&D, complex terrain inspection, and long-term uninterrupted operation scenarios, such as the battery cell technology used in the GAC GoMate wheeled dual-arm robot. Semi-solid-state battery cells can achieve an energy density of 360-460Wh/kg, while all-solid-state battery cells break through 490Wh/kg. Compared with traditional liquid lithium batteries, the volume is reduced by 38%, the weight is reduced by 18%, the endurance is doubled, and the safety is greatly improved, making them suitable for high-precision dual-arm operation and long-term wheeled movement scenarios.
We equip humanoid robots with a dedicated BMS (Battery Management System), breaking away from the traditional static BMS management model. It is specifically adapted to the continuous power supply requirements of wheeled movement and the peak power demands of dual-arm operation, enabling real-time monitoring, precise control, and intelligent optimization of battery status, extending battery life, ensuring stable power supply, and seamlessly cooperating with the robot's main control system to improve work efficiency.
To address the needs of humanoid robots working long hours and where manual charging is inconvenient, we offer diversified charging solutions that overcome the pain points of traditional charging methods, such as long charging times and reduced work efficiency, while also adapting to the autonomous movement characteristics of humanoid robots. Our magnetic resonance coupling wireless charging technology achieves a transmission efficiency of 93% over a 5cm distance, enabling the robot to autonomously move to the charging area to complete charging without human intervention.
Based on the industry differences, workload, and battery life requirements of humanoid robots, we have developed three standardized solutions and provide full-process customization services. We tailor-make exclusive lithium battery solutions according to parameters such as the robot's wheeled chassis specifications, dual-arm load capacity, body size, and working environment, ensuring that each solution can accurately meet the needs, reduce customers' R&D and procurement costs, and adapt to the operating scenarios of different types of wheeled dual-arm robots.
Suitable Scenarios: Suitable for low-load scenarios such as shopping mall guides, hotel reception, government services, and education. Corresponds to a robot wheeled walking speed of 90m/min and a single-arm load of ≤6kg. Lightweight, efficient, and cost-effective are the core requirements, such as various commercial service wheeled dual-arm robots.
Core Configuration: Battery pack energy density of 230Wh/kg, supporting 4C continuous discharge and 12C peak discharge; liquid cooling + PCM composite thermal management, three-level safety protection, IP67 protection rating; compatible with CTC integrated design, lightweight design, fits the robot's mobile chassis, and does not affect wheeled mobility.
Core Advantages: Battery life of 8-16 hours under low load, controllable cost, safe and stable, suitable for long-term mobile service needs in commercial scenarios, supports wireless autonomous charging, widely applicable to various commercial wheeled dual-arm service robots, easy to operate and low maintenance cost.
Suitable Scenarios: Suitable for production line assembly, inter-factory inspection, hotel service, and other scenarios. Maximum movement speed reaches 2m/s, with a dual-arm load capacity of 12kg. Combined with a 48V platform, the overall output is more powerful, significantly improving the stability of burst movements and high-speed control.
Core Configuration: Supports 30A continuous discharge and 50A peak discharge; explosion-proof design + high-voltage interlock, IP67 protection rating, military-grade potting process, suitable for harsh industrial environments, and compatible with industrial robot communication protocols.
Core Advantages: 6-12 hours of battery life, extremely strong resistance to impact, vibration, and oil contamination, high-frequency start/stop without attenuation, daily workload can reach 3.5 times that of manual labor, effectively replacing manual labor for high-intensity tasks.
Suitable Scenarios: Suitable for high-end R&D testing, complex terrain inspection, and long-term uninterrupted operation. The robot's wheeled movement speed is ≤1.8m/s, with a dual-arm load capacity of 15kg. Long endurance, lightweight design, and high safety are core requirements.
Core Configuration: Intelligent composite temperature control system for stable operation over a wide temperature range; fully sealed explosion-proof design; equipped with an autonomous battery swapping module for 24-hour uninterrupted operation; also compatible with wireless charging for flexible and diverse power replenishment methods.
Core Advantages: 10-15 hours of battery life; small size and light weight; suitable for complex terrain (slopes, narrow passages) and long-term operation. Meets the needs of high-end scenarios such as scientific research testing, high-end industry, and outdoor inspection. Samples have been sent to leading wheeled dual-arm robot customers for testing, and compatibility has been fully verified.
LEAD-WIN provides a one-stop service covering the entire process from "requirements communication to solution design, sample development, testing and verification, mass production, delivery and after-sales service". Relying on a professional R&D team and advanced testing equipment, we optimize the solution design and testing process for the unique characteristics of wheeled dual-arm humanoid robots, ensuring that the solution is implemented quickly, stably and reliably. We also provide lifetime technical support to solve various problems that customers encounter in subsequent use, helping customers' products quickly seize the market.
In the future, we will continue to focus on the field of lithium batteries for humanoid robots, keep up with cutting-edge technology trends such as all-solid-state batteries and sodium-lithium hybrid batteries, optimize product performance, improve scenario-based solutions, promote the popularization of energy replenishment technologies such as wireless charging and autonomous battery swapping, adapt to the development needs of robots towards high precision, long endurance, and multiple scenarios, help the humanoid robot industry achieve large-scale and high-quality development, and provide stable, efficient, and safe energy support for the widespread application of humanoid robots.
