Foil huge potential applications in lithium batteries
2015/9/16 8:22:49
In China, "second five" plan new energy vehicles is one of the seven new industry, has become a national economic revitalization and transformation of the industrial structure of an important breakthrough. Development of new energy vehicles is an important part of a low-carbon economy, to ease the energy supply and demand, improve the environment and promote sustainable economic development plays an important role in promoting.
New energy vehicles is one of the industries that best reflect a country's level of technological development, independent innovation capability and international competitiveness, and promote China's transport energy transformation, through energy diversification, power electrification, clean emissions, the realization of China from auto producing countries to changing automotive technology powerhouse.
In China promulgated the "automobile and new energy automotive industry development plan" (2011 ~ 2020) of the draft stipulates that the central government will invest hundreds of billions to support energy conservation and new energy vehicle development and promotion of the core technology, China has become the world's largest new energy automobile production country, the Chinese new energy automobile production technology and keep pace or at the advanced level of developed countries, China has electric vehicles as a new energy vehicle development a top priority, the development of new energy vehicles main direction.
Electric vehicle power source is a battery, the battery power mobile energy source is composed of an anode, a cathode and an electrolyte composition. Ions flow out from the positive electrode during charging, the electrolyte flows through the anode, cathode and the anode opposite electrochemical reaction occurs at work or discharging, the voltage drop produced by the applied load driving, making the car running.
Electric vehicle power battery is a lithium battery: a positive piece of iron phosphate lithium coated on aluminum foil (lithium cobalt oxide LiCoO2, or LiMn2O4 lithium manganese oxide or ternary compound Li (NiCo) O2), but to the best of lithium iron phosphate
Extremely negative foil coated with graphite or lithium titanate and the like. A septum between the positive and negative foil, wound together. The winding good positive and negative film (including diaphragm) together into the battery case, into the electrolyte, and then vacuum packaging, to complete a single cell production.