New technology developed by Chinese scientists achieves higher energy efficiency than burning while eliminating carbon dioxide emissions
2-MIN READ2-MINZhang Tongin BeijingPublished: 6:00pm, 26 Apr 2026Chinese scientists have developed a method to generate electricity and achieve higher energy efficiency than conventional burning, while producing zero carbon dioxide emissions, by placing coal inside a “battery”.“Coal-fired power” conjures images of heavy pollution, steep carbon footprints and modest efficiency. But a novel, direct coal power technology challenges that stereotype by eliminating combustion entirely and sidestepping the CO₂ emissions that have long defined coal use.
In this system, coal is pulverised, dried, purified and subjected to surface pre-treatment before being fed into the anode chamber of the cell.
Oxygen is supplied to the cathode, and within the cell, the fine coal powder undergoes electrochemical oxidation across an oxide membrane, yielding electricity directly – without any intermediate steam cycle or mechanical turbine.
China’s coal miners worry about a greener future
China’s coal miners worry about a greener futureAt the anode outlet, the high-purity carbon dioxide generated by the reaction is captured in situ and catalytically converted into valuable chemical feedstocks such as synthesis gas or mineralised into compounds like sodium bicarbonate.
