Light-controlled energy storage module

Light-controlled energy storage modules are systems that capture, store, and release energy in response to light, ranging from artificial photosynthetic microgels to solar-assisted batteries and smart lighting systems.

Biological Light-Controlled Energy Storage

Recent research has developed artificial energy supply modules that mimic natural photosynthesis. One example is the thylakoid-loaded microgel (TM), which encapsulates spinach-derived thylakoids in alginate/gelatin microgels. These modules retain the photosynthetic light reactions, including electron transfer in photosystem II, and produce ATP that can be released to the external environment. The TM system demonstrates long-term activity, maintaining high ATP production for at least 96 hours due to oxidation shielding, protein stabilization, and membrane protection. Such modules can drive enzymatic reactions both inside and outside the microgel, offering potential for artificial cell construction and biosynthesis .

Technological Light-Assisted Energy Storage

In the technological domain, photo-assisted energy storage devices integrate solar energy capture with storage systems like batteries and supercapacitors. These devices convert sunlight into electrical energy and store it for later use, addressing the intermittent nature of solar power. By combining photovoltaic (PV) systems with electrochemical storage, these modules enable continuous energy supply, improve efficiency, and reduce reliance on fossil fuels . Challenges include optimizing energy conversion efficiency, storage capacity, and device longevity.

Practical Applications

1. LED Energy Storage Roadway Lighting: Uses decentralized energy storage and digital control to optimize urban lighting. The system adjusts brightness and output based on time of day, electricity price, and IoT/cloud data, while integrating emergency lighting and remote monitoring .

2. Home Energy Storage Systems: Systems like Sonnen Eco combine PV panels with lithium iron phosphate batteries and smart energy management software. They store excess solar energy and release it on demand, providing energy independence and efficient household power management .

3. Energy Storage Controllers: Advanced controllers manage battery energy storage systems (BESS), optimizing charging from PV or off-peak electricity and controlling discharge during peak demand. These systems ensure regulatory compliance, maximize solar penetration, and enable remote monitoring .

Summary

Light-controlled energy storage modules span biological and technological systems. Biological modules, like thylakoid-loaded microgels, store energy in chemical forms such as ATP, while technological modules store electrical energy from sunlight in batteries or supercapacitors. Applications range from artificial cells and biosynthesis to smart urban lighting and household energy management, highlighting the versatility and growing importance of light-controlled energy storage in both research and practical energy solutions.