Disadvantages of Lithium Iron Phosphate Battery
As we all know, domestic mainstream vehicle power batteries are commonly used lithium iron phosphate battery cathode material, anode material, separator, and electrolyte composition. Power as a chemical system, is generally within the design range of operating conditions is not easy to spontaneous combustion and other security incidents. However, the lithium ion batteries are used mainly graphite material overcharge is easy to precipitate the lithium dendrite to cause the battery to short-circuit, affecting the safety performance of the lithium battery; Yi SEI film is formed and led to the first charge-discharge efficiency is low, irreversible larger capacity. This makes the vast majority of "dare" fast charge, quick release, but only slow charge form, severely restricted the flexibility and convenience on the use of vehicles, to the promotion and popularization of electric vehicles bring electric vehicles no small obstacle. Last year, several electric vehicle accident occurred this year, lithium batteries have undergone a fire burning phenomenon, making the community raised questions about the security of the electric car, also prompted enterprises to accelerate a new type of battery, such as R & D footsteps. For example, theVinnic batteries are one of them.
The Advantages of Lithium Titanate Batteries
The again recently held "2012 new energy automotive industry and cooperation Summit Forum Project butt Fair mentioned a new type of battery – the outstanding performance of lithium titanate battery. Lithium iron phosphate energy density has been developed to a higher level, and you want to further breakthroughs is the very difficult. Now launched the lithium titanate batteries, and compared with the commonly used silver oxide batteries, it is very stable in use, do not form SEI film; coupled on lithium titanate is potential than lithium metal, is not easy to precipitate lithium dendrite, so it is more secure. Currently, only a small number of enterprises in the use of lithium titanate batteries are using lithium titanate "pure electric buses 10 minute quick charge" According to reports, after a year of operation, over 50 thousand kilometers traveled, charging more than 2,000, the test of Chongqing mountain and a high temperature of 44 degrees Celsius the lithium titanate fever running than phosphate lithium battery is low to around 10 degrees Celsius.
Chinese Financial Supports New Energy Battery Innovation
In order to speed up the process of technological innovation and industrialization of new energy automotive industry, the central government will allocate funds to support the technological innovation of the new energy automotive industry. Yesterday, the Ministry of Finance, the Ministry of Industry, the Ministry of Science and Technology jointly issued a circular, clear the year 2012 the new energy automotive industry technology innovation project reporting conditions. This means that the new energy automotive industry technological innovation projects declared to start.
No comments:
Post a Comment