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Lithium power surge: How robot dogs are driving a new battery revolution
In recent years, the robot dog market has shown an explosive growth trend. The driving force behind it comes from the progress of technologies such as artificial intelligence and machine learning, as well as the continuous expansion of application scenarios. As the core power source of robot dogs, the development of lithium battery technology directly determines the endurance, motion performance and application scope of robot dogs.
This article will deeply analyze the development status, technological breakthroughs, market structure and future trends of the robot dog lithium battery industry, and strive to fully demonstrate the opportunities and challenges of this emerging field.
Robot dog market boom: lithium demand surges
Robot dogs, also known as quadruped robots, have shown great potential in military reconnaissance, disaster rescue, security patrols, logistics and transportation, and entertainment companionship with their excellent adaptability and flexible movement ability in complex terrain.
Market data shows that the global quadruped robot market sales will reach 34,000 units in 2023, a year-on-year increase of 76.86%. Among them, the Chinese market leads the world with sales of 18,000 units, with a growth rate of 76.92%. The industry predicts that by 2031, the sales volume of robot dogs in the Chinese market will exceed 394,800 units, an increase of nearly 8 times compared with 2025.
The explosive development of the robot dog market has directly led to a surge in demand for high-performance lithium batteries. The key performance indicators of robot dogs, such as battery life, movement ability, and load capacity, are closely related to parameters such as battery capacity, energy density, and charge and discharge rate.
Therefore, the improvement of lithium battery technology is an important driving force for the development of the robot dog industry. In turn, the demand of the robot dog market has also stimulated lithium battery companies to accelerate technological innovation and market layout.
Core demands for robot dog batteries: capacity, power, and reliability
Compared with other application scenarios, robot dogs have more stringent requirements for battery packs, and need to take into account high capacity, high rate charge and discharge, and high safety at the same time:
Robot dogs need to work for a long time in complex outdoor environments, such as patrolling, exploration, rescue and other tasks, which requires the battery pack to have sufficient capacity to ensure a longer battery life, reduce charging frequency, and improve work efficiency. Ideally, the robot dog’s battery life should be more than 6 hours, or even longer.
The robot dog needs to frequently accelerate, climb, jump and other actions during the movement, which requires the battery pack to have a strong instantaneous discharge capability and be able to provide sufficient power output in a short time. At the same time, fast charging capability is also very important, which can replenish power in a short time and reduce waiting time.
The application environment of the robot dog is often harsh, and it may face extreme conditions such as impact, vibration, high temperature and low temperature. This requires the battery pack to have a high degree of safety and stability, be able to withstand external impact, and prevent safety accidents such as overheating, short circuit and explosion (explore lithium battery explosion).
In order to improve the flexibility and sports performance of the robot dog, the weight of the battery pack also needs to be reduced as much as possible, and a lightweight design is achieved while ensuring performance.
The robot dog may work in a cold environment, which requires the battery pack to maintain good discharge performance in a low temperature environment.
Lithium battery companies enter the robot dog race
Faced with the opportunities brought by the explosion of the robot dog market, many lithium battery companies have accelerated their layout and seized market share through technological innovation, product iteration, market cooperation and other means.
Through the investment platform, it invested in the humanoid robot company, set up a research and development team to tackle robot control technology, and cooperated with Fulin Precision’s subsidiary to explore the innovation of robot joint parts, showing its comprehensive layout in the field of robots.
Actively connect with the needs of leading robot dog customers, some products have completed sample delivery and assembly, the subsidiary was renamed “Jinyuan Intelligent Robot”, and new business segments such as robot dog research and development and manufacturing were added, indicating its attention and investment in the robot dog market.
It believes that solid-state batteries will become the mainstream solution for robot dogs. With the fit between pouch cells and customer needs, it has connected with domestic leading robot dog companies for customized development, and plans to send samples within 2025, showing its leading advantage in the field of solid-state batteries.
Signed a contract with Bell Robotics in the United States in 2023 and became its exclusive supplier of cylindrical batteries from 2025, providing power support for Bell’s flagship robot dog and expanding business diversification.
Launched cylindrical and semi-solid battery packs with high energy density and good low-temperature performance, suitable for outdoor robot dog operations, and has provided power support for many robot dog companies, showing its competitive advantage in specific application scenarios.
United Star Capital invested in Boshida Group to enter the robot field. Battery products have been applied to sweeping robots. In the future, it plans to extend to consumer-grade robot dog scenarios, reflecting its strategy of expanding from consumer-grade robots to industrial-grade robots.
Relying on JTM winding process batteries and semi-solid technology, it adapts to the high energy density requirements of robot dogs, cooperates with Bosch to develop a dedicated BMS system, optimizes battery life and safety, and demonstrates its advantages in battery manufacturing technology and safety performance.
As a core supplier of 60% of the robot dog market of Yushu Technology, it has achieved batch shipments of robot dog batteries, and simultaneously developed special models to improve low-temperature discharge performance, consolidating its position in the supply chain of leading customers.
Sending sample battery products to the “AI + Child Companion” robot brand, mass production in 2025, and promoting the verification and introduction of industrial robot dog brands at the same time, indicating that its accumulated experience in the field of consumer robots is expanding to industrial robots.
21700 lithium cells: A key technology driving the robot dog battery market
In the selection of battery cells for robot dog battery packs, pouch cells, prismatic cells, and cylindrical cells each have their own advantages and disadvantages. Although pouch cells have certain advantages in energy density, their shells have weak anti-seismic and anti-puncture properties, and are difficult to withstand the severe vibration and potential collision risks during the movement of robot dogs.
Due to technical and volume restrictions, prismatic cells are more suitable for use in power battery scenarios such as electric vehicles with relatively loose space requirements. In contrast, the 21700 battery cell has become an ideal choice for robot dog battery packs with its mature technology, higher energy density and better safety performance.
Compared with traditional 18650 batteries, the 21700 battery cell has a larger volume and a capacity increase of more than 30%. It can store more power in a limited space and meet the robot dog’s needs for high capacity and high energy density.
The robot dog needs to release a large current instantly during climbing, acceleration and other movements, which requires the battery cell to have excellent rate performance. The 21700 battery cells launched by some leading battery cell companies, such as INR21700-50S, with a capacity of 4500mAh and a discharge rate of 10C, can achieve 6 hours of battery life in the actual test of a robot dog with a load of 20kg, and climb a gravel slope at a speed of 5km/h.
In order to further improve the performance of 21700 battery cells, battery cell companies have made dual innovations in materials and structures:
Future trends in robot dog lithium battery technology
Looking to the future, the robot dog lithium battery industry will show the following development trends:
Solid-state batteries have higher energy density, higher safety and longer cycle life, and are expected to become the mainstream solution in the robot dog lithium battery market. Companies such as Farasis Energy have begun to deploy the application of solid-state batteries in the robot dog field, and it is expected that more solid-state battery products will enter the market in the next few years.
Battery management system (BMS) is crucial to the performance and safety of batteries. In the future, BMS will be more intelligent, able to monitor the status of batteries in real time, optimize charging and discharging strategies, predict battery life, and provide fault warnings, thereby improving the efficiency and safety of battery use.
Different robot dog application scenarios have different performance requirements for batteries, so customized solutions will become a trend. Lithium battery companies will design and produce customized battery packs according to the specific needs of customers to meet the specific needs of different application scenarios.
Through energy recovery technology, the energy generated by the robot dog during braking, downhill, etc. can be recovered and stored, thereby extending the battery life. Energy recovery technology is expected to be widely used in future robot dogs.
Wireless charging technology can provide a more convenient charging method for robot dogs, reduce manual intervention, and improve the degree of automation. Wireless charging technology is expected to be used in future robot dogs.
Challenges and opportunities ahead
The development of the robot dog lithium battery industry faces some challenges:
Despite the challenges, the robot dog lithium battery industry also faces huge opportunities:
Conclusion