China’s high-tech enterprise CBAK Energy Technology is scaling production of its large cylindrical lithium-ion batteries at its Nanjing Phase II facility, with plans to eventually raise annual capacity from 3 gigawatt-hours (GWh) to 18 GWh. The company said the expansion is centered on its Model 32140 full-tab cylindrical cell, which is being produced using automated equipment, digital quality controls and high-speed assembly systems. The long-t…