EnvironmentChemical injection brings dying batteries back to life Researchers restored degraded lithium-ion batteries to nearly full capacity by injecting them with a chemical that creates more charged particles inside them ¿ìè¶ÌÊÓÆµ
TechnologyWorld's biggest onshore wind turbine blades unveiled in China A Chinese company is building wind turbines with 131-metre-long blades, the longest ever used in an onshore power plant ¿ìè¶ÌÊÓÆµ