Loading ...Re robotics and silver….lightness and conductivity…can’t beat it…only Gold can…..
from Grok
Electrical contacts and connectors
Silver has the highest electrical conductivity of any metal (even better than copper). Robot joints, sensors, switches, and high-reliability connectors often use silver or silver-plated contacts to minimize resistance and heat buildup.
Soldering
Most electronic circuit boards in robots (including the “brain” controllers) are assembled with silver-containing solder alloys (e.g., SAC305: tin–silver–copper). Silver improves strength, fatigue resistance, and conductivity compared to old tin–lead solder vs. traditional tin-lead solder.
Sensors
Many MEMS (micro-electro-mechanical systems) accelerometers, gyroscopes, and pressure sensors in robots use tiny silver or silver-alloy components.
Some high-end tactile or force sensors use silver nanowires or silver paste for flexibility and sensitivity.
Motors and actuators
High-performance brushed DC motors and some slip rings use silver–graphite brushes because silver dramatically reduces electrical noise and wear compared to copper–graphite.
Batteries
While lithium-ion cells themselves don’t contain much silver, many battery management systems (BMS) and high-current connectors in robotic platforms are silver-plated.
Antimicrobial coatings (in some service/humanoid robots)
A few healthcare or food-service robots (and some consumer robots like certain vacuum models) use silver nanoparticle coatings on touch surfaces because silver is naturally antimicrobial.
Reflective surfaces / mirrors in LIDARs and optics
Some precision optical systems in robotic vision or laser scanners use silver coatings because silver has the highest reflectivity across visible and near-infrared light.
In short:
You won’t see big shiny silver blocks in most robots, but if you look at the microscopic or high-performance level, silver is everywhere in modern robotics for its unbeatable combination of conductivity, reflectivity, solderability, and (in small amounts) antimicrobial properties.
A single advanced humanoid robot can easily contain several grams to tens of grams of silver, mostly in electronics and contacts. Industrial robots and drones often contain even more in their control systems and power distribution.