The innovative world of robotics continuously seeks inspiration from nature’s blueprints, moving from crafting nimble swimmers to versatile land walkers. A groundbreaking study by researchers at Cornell University introduces the concept of “embodied energy.” This advancement enables soft robots to integrate their power sources directly into their structural makeup, leading to significant reductions in weight and cost. Among the most notable innovations are a modular worm robot and a jellyfish robot, robot forms that redefine both design and functionality.
Developed at Cornell’s prestigious Organic Robotics Lab, the worm robot was created alongside contributions from the Archer Group, who focused on the jellyfish robot. These robotic marvels showcase the practical application of “embodied energy” by utilizing cutting-edge redox flow batteries (RFBs). These unique systems circulate energy throughout the robots akin to biological organisms’ circulatory systems. This innovative approach follows the footsteps of the lionfish robot prototype launched back in 2019 but boasts improved battery capacity and power density, marking a new milestone in efficient robotic designs.
The jellyfish robot stands out with its adoption of a zinc-based battery technology enriched by graphene components. This strategic integration boosts ion transport and addresses common battery challenges, such as dendrite formation, effectively. This technological leap allows the jellyfish robot to achieve swift and nimble movements underwater, operational for nearly 90 minutes per charge. Such capability significantly lowers costs in ocean exploration, highlighting its potential as a tool for marine research.
Contrarily, the modular worm robot is engineered with a compartmentalized architecture, where each segment is outfitted with motor and actuation systems. This thoughtful design enables it to navigate and crawl through tight spaces, suggesting impactful applications in exploration and repair work within constrained environments like industrial pipes. A dry-adhesion technique contributed by postdoctoral researcher Chong-Chan Kim enhances energy efficiency, blending power storage with mechanical actuation seamlessly.
By weaving power sources into structural components, these robots achieve lighter and more efficient autonomous operations. Looking toward future developments, researchers might explore lithium-polymer batteries as they evolve more complex robots capable of swimming, crawling, and potentially even walking, closely mimicking biological organisms.
Cornell’s pioneering work on embodied energy paves the way for crafting more affordable and adaptable robots. These robots are uniquely positioned for exploration and repair missions across diverse landscapes. As this technology continues to progress, we anticipate leaps toward creating highly sophisticated robots that beautifully integrate energy systems, thus opening exciting new frontiers in autonomous machine integration.