Tiontech has invented a novel AC and DC combined recharging method to bring back 100% health of end-of-life Lithium-ion batteries after years of experiment. The UK patented innovation is able to reverse the battery degradation without the needs to dismantle the battery. The whole process has no extra CO2 emission and water waste. The technology will initiate a new paradigm of how aged Li-ion cells should be solved bypassing the complex traditional recycling.