Battery technology is the key to the development of Electric Bicycle, lithium iron phosphate battery which has been favored by many automotive business. Pure Electric Bicycle Volt GM is using this battery, actually, BYD's iron battery lithium iron phosphate batteries. The battle of a patent for lithium iron phosphate has reached a fevered pitch, the U.S. patent litigation lithium iron phosphate has reached an impasse.

At present, both the United States Bo-energy or the Texas State University, Quebec, Canada, and its business authorized water companies are not apply the patent of lithium iron phosphate battery of Electric Bicycle in China. The rate that Chinese enterprises apply for the patent of Lithium iron phosphatem battery is accelerating and the number of patents have been open is more than 200 pieces, but Japan's Sanyo and Yuasa also applied for a patent lithium iron phosphate in China. China should be strengthened in respect of iron phosphate lithium battery technology of Electric Bicycle, and speed up the rate of foreign applications patent.