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High-Efficiency Material for Next-Gen Energy Storage

  • 07 Jul 2025
  • 2 min read

Source: PIB 

Centre for Nano and Soft Matter Sciences (CeNS), Bengaluru & Aligarh Muslim University (AMU) have developed a lanthanum-doped silver niobate-based energy storage material, which has enhanced the performance of supercapacitors.

Lanthanum-Doped Silver Niobate Energy Storage Material: 

  • About: It is an advanced nanostructured compound made by doping silver niobate (AgNbO₃), a lead-free and eco-friendly perovskite material, with lanthanum, a rare-earth element.  
  • Significance:  
    • This doping has reduced nanoparticle size, increasing the surface area for energy storage, and improved electrical conductivity for faster charge-discharge cycles. 
    • It also ensured excellent energy retention (118%) with no energy loss during use (100% coulombic efficiency).  
    • It is also environmentally friendly, being lead-free and suitable for green energy applications. 
  • Applications: Used in portable electronics, electric vehicles (EVs), and renewable energy systems, demonstrated potential by successfully powering an LCD display through a prototype supercapacitor.

Supercapacitors: 

  • Supercapacitors, also known as ultracapacitors, are energy storage devices that bridge the gap between conventional capacitors and batteries 
  • They offer high power density, rapid charge-discharge, and a long lifecycle (millions of cycles).  
  • Unlike batteries, they store energy through electrostatic charge separation rather than chemical reactions, making them safer and more durable. 
  • They have lower energy density than batteries, but this can be improved through material doping, such as with lanthanum-doped silver niobate. 

Batteries_Vs_Supercapacitors

Read More: Paper-based Supercapacitor for Rapid Device Charging 
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