Quadruped robots (commonly known as robot dog) are widely used in inspection, military reconnaissance, special operations and other fields. The performance and reliability of power systems become the key to ensure their efficient operation. As the main energy carrier of robot dog, lithium batteries need to have high energy density, excellent safety performance and flexible customization capability to meet diversified application requirements. This paper introduces the general technical scheme of robot dog lithium battery in detail, covering system design, core technology, performance index and application characteristics, providing users with a mature and reliable power solution.

I. Application scenarios and requirements analysis

robot dog work in complex environments such as inspection, military reconnaissance and special operations, facing various mission reguirement:

• inspection scenario
  real-time monitoring and data collection of equipment in electric power, petroleum, transportation and other industries require long endurance and highly reliable power support to ensure that robots can continuously perform inspection tasks.

• Military Reconnaissance
  reconnaissance tasks require extremely high concealment, mobility and durability of robots. The power system must have fast response, high power output and safe and stable performance.

• Special operation
  including rescue, dangerous environment operation, etc., the power system is required to have excellent environmental adaptability and extremely high safety guarantee to ensure that the robot is in bad condition.Under the condition of continuous energy supply.

To meet the above requirements, lithium battery systems must achieve high energy density, lightweight design, intelligent management and high customization flexibility.

II. Overall system design architecture

robot dog lithium battery system it consists of battery cell, battery module, power battery management system (BMS), thermal management system, mechanical structure and communication interface. Each part is optimized cooperatively to ensure the overall performance of the power system in terms of performance, safety and reliability.

1. Battery monomer and module design

high energy density lithium-ion battery monomer is selected to support high rate charging and discharging, which meets the instantaneous power demand of robot dog during dynamic motion. Module design adopts modular structure, which is convenient for flexible configuration according to different robot dog specifications and mission reguirement.

2. Battery management system (BMS)

BMS is responsible for monitoring the battery voltage, current, temperature and status in real time, accurately controlling the charging and discharging process, and preventing overcharging, overdischarging and overdischarging.Abnormal flow and short circuit ensure safe and stable operation of the battery. The system supports dynamic estimation of SOC (power status) and SOH (health status) to facilitate users to master the battery status in real time.

3. Thermal management system

in view of robot dog operating in various environments, lithium battery thermal management adopts passive heat dissipation combined with lightweight air cooling design to ensure that the battery pack temperature is kept within a safe range and prevent performance degradation or safety risks caused by overheating.

4. Mechanical structure design

battery pack adopts compact and lightweight structure design, which has good seismic, dustproof and waterproof performance, and is suitable for complex terrain and harsh environment. Battery pack interface standardization for quick disassembly and maintenance.

5. Communication interface

the system is equipped with standardized communication protocols (such as CAN bus) to realize seamless connection with the robot dog control system, support real-time data transmission and remote monitoring, and improve the intelligent management level of the battery system.

III. Core Technical features

advanced battery materials and optimized battery cell structure are adopted to realize maximum capacity energy storage within a limited volume, significantly improving the endurance of robot dog. Lightweight design effectively reduces load and improves robot dog movement efficiency.

2. High rate discharge capability

meet the high power requirements of robot dog during fast start, climbing and complex movements, ensure the stability and response speed of power output, and support the execution of diverse and complex actions.

3. Intelligent battery management system

BMS integrates multiple intelligent algorithms to realize dynamic balancing, fault warning and health management, prolong battery life and improve system safety and reliability.

4. Excellent thermal management solution

combined with the motion characteristics of the robot, the lightweight and efficient heat dissipation design is adopted to ensure the stable temperature of the battery pack during long-term high-load work and prevent thermal runaway.

multiple protection mechanisms include overvoltage, undervoltage, overcurrent, short circuit, abnormal temperature, etc. With the shockproof protection design of mechanical structure, the battery system is safe and reliable, and can adapt to complex working environment.

6. Flexible customization capability

according to different robot dog models and mission reguirement, various capacity, size, voltage level and interface customization solutions are provided to meet users' personalized application needs.

IV. Performance indicators and technical parameters (examples)

v. Typical application advantages

• improved battery life
  high energy density design extends robot dog single operation time, reduces charging frequency and improves working efficiency.

• High security
  multiple protection mechanisms and reliable thermal management ensure the safe and stable operation of the system in complex environments.

• Flexible adaptation to multiple scenarios
  the battery capacity and output power are customized according to mission reguirement to meet the diversified requirements of inspection, reconnaissance and special operations.

• Intelligent management and maintenance
  real-time status monitoring and fault diagnosis improve O & M efficiency and reduce maintenance costs.

• Compact structure for easy integration
  lightweight and modular design makes it easy to quickly integrate into different models to optimize the overall performance of the equipment.