A Li-polymer unit can be as thin as 0.5mm. Shipments of this type are expected to increase together with rising demand for slimmer and lighter devices. Average annual sales are forecast to grow by more than 30 percent in coming years, compared with 20 percent for Li-ion.

Electric vehicles and their hybrids, meanwhile, are boosting the development of power lithium ion battery. Although mobile phones and laptops remain their strongest markets, the requirement for "green" vehicles is multiplied based on the number of cells used. 

The average capacity of a mobile phone battery is 3 to 4Wh, while its EV counterpart is about 20kWh. The latter's base can swell in the next few years. 

Local manufacturers of power lithium variants expect demand from the EV sector to exceed consumer products by 2013. The global market of the battery type will hit $16 billion by 2018, surging from $500 million last year, according to IIT. In 2011-18, the CAGR will likely touch 54 percent. 

The country remains the largest supplier of the line worldwide, accounting for more than 40 percent of global yield. In 2010, it produced more than 2 billion lithium batteries and packs, increasing 20 percent from the previous year. Export volume reached 1.1 billion units and achieved $3.9 billion.

The provinces of Guangdong, Tianjin, Jiangsu and Fujian, and Shanghai are the main production hubs in China. First, Shenzhen, Dongguan, and Zhongshan cities are the major supply centers. 

Cylindrical kinds suit laptops, digital cameras and camcorders, PDAs, and portable navigation devices. The 18650 series leads to supply and boasts a 3.7V nominal voltage and 1,200 to 2,400mAh capacity.