Hangzhou Dongjian Energy Technology Co., Ltd is a high technology industry and focusing on R&D, productionand sale of lithium ion battery. The company also provide counselling for relevant technology problems. The company has advanced R&D, production and professional process control. Focusing on R&Dand producingLi-ion power batteries. With skiled technology, advanced production machines, scientificmanagement system and excellent operation concept. We have already manufactured plenty highly-safeLi-ion power batteries, and it's widely used in electric bikes, motorbikes, medical apparatus and etc.Alongwith the development of new product, our company insist to provide higher performance, more eco-friendly, convenience batteries ,we will extend our technology to several areas such as transportation,aerospace and energy storage. The company has passed ISO9001: 2008、 CE 、 RoHS, UN38.3, we maintain close cooperationwith Hangzhou Electronic Science and Technology University over years and at the same time, inviteZhejiang University famous professional doctorate to guidance.We believe that through the continuousefforts and the pursuit of the DONGJIAN workers, leading technology, advanced manufacturingequipments, excellent management idea, the scientific management system and love and dedication ofstaffs, committing to a more security, more environmental protection, more stable of lithium batteryproduction, we can build green China.