The question points to a 2025 energy-storage breakthrough announced by the Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bengaluru, an autonomous institute under the Department of Science and Technology.

JNCASR scientists developed a super-fast charging sodium-ion battery that can reach roughly 80 percent charge in only a few minutes, addressing one of the biggest drawbacks of everyday rechargeable cells, slow charging.

A sodium-ion battery works on the same rocking-chair principle as a lithium-ion cell, but it shuttles sodium (Na+) ions between the electrodes instead of lithium ions during charging and discharging.

The chief attraction is resource availability: sodium is extremely abundant and cheap (it can be sourced from common salt and seawater), whereas lithium is scarce, geographically concentrated and expensive, which makes sodium-ion technology strategically important for India.

Potassium-ion batteries are a genuine but separate research line that use potassium ions, and were not the JNCASR 2025 announcement. Graphene batteries use graphene mainly to enhance conductivity and electrode performance, again a different technology.

'Nion battery' is not a recognised, established battery chemistry, so it can be set aside as an invented term.

Therefore the super-fast charging technology developed by JNCASR in 2025 was the Sodium-ion battery.