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Titanium acid lithium battery will trigger a electric car revolution _ lithium ion battery

Time:2012-10-26 17:25:18  |  Sources:Lithium ion rechargeable cells,LIFEPO4 rechargeable batteries,Power type lithium batteries,Custom made battery packs,Mobile power  |  Author: admin
As is known to all, at the time of the main domestic vehicle power battery widely choose iron phosphate lithium battery, the first by the positive electrode material, negative electrode materials, diaphragm and electrolyte composition. As a chemical power supply system, in the depiction of work condition scheme within the general not simple spontaneous combustion occurred, such as safety issue. But lithium ion battery cathode first choose graphite materials, charging easily spare lithium dendritic, constitute a short circuit batteries, lithium batteries affect the safety function; Easy together constitute SEI incurred ChuDu charge and discharge power is low, irreversible capacity is big. This makes now most of the electric car "can't" of quick charge fast put, and can only choose slow filling method, severe restrict the use of the vehicle on the flexibility and convenience, the electric car to the promotion of widely brought a lot of obstacles.
In addition, commercial diaphragm for porous PP/PE material, thickness is generally 20-30 microns or so, is positive pole material and between anode materials only barrier, when the battery occur external short circuit or by acupuncture kneading, very simple cause diaphragm split, constitute a brief period of large current, make the battery internal temperature rise, and in a very short time cause series of violent reaction. Last year, this year happened a few up electric vehicle disturbance, lithium battery occurs the combustion representation, this makes the social from all walks of life to the security of electric vehicle questioned, also promote affiliate to speed up the modern power battery research and development steps.
In yesterday's "2012 new energy automobile industry hair bundle and cooperation peak BBS and project butt fair", ChenQingQuan academician again mentioned a new battery, titanium acid lithium battery's excellent performance. In the interview, ChenQingQuan further points out: "when lithium iron phosphate in energy density is now open to a (relatively) higher level, want to further break very difficult. But now launched titanium acid lithium battery (i.e., lithium titanate LTO as anode materials) in use is safe (lithium ion in the embedded and emerge when the lattice constant and volume changes are small), (for LTO material not with electrolytic reaction so) won't make SEI; plus titanium acid lithium potential than lithium metal high, is not easy to spare lithium dendritic, thus (than choose carbon negative electrode material of lithium ion battery) more security.
And carbon anode materials comparison, lithium titanate with high of lithium ion diffusion coefficient (2 * 10-8 cm2 / s), so it can be carried out with a high ratio charge and discharge, and battery capacity attenuation slowly, life is high also many, circulation charge and discharge frequency over 25000 times. "Now (titanium acid lithium) the biggest problem is in value to your many (said to your two times above), and now the nation can do (titanium acid lithium battery) company is too little, if who can put the lithium titanate do save your money, that will give electric cars bring revolutionary reform."
At that time the domestic need to chongqing hengtong (and micro macro dynamic collaboration) and zhuhai silver pass (the acquisition of the United States Olympic titanium nanometer technology co., LTD.) in the use of titanium acid lithium battery, according to chongqing hengtong electric bus power system co., LTD., deputy chief engineer of the generation of young wen meetting, choose the titanium acid lithium battery "10 minutes fast charging pure electric bus" occupied more than a year of operation, walk more than 50000 kilometres, charging 2000 many times, in chongqing mountain and 44 degrees Celsius high temperature detection, "assignments titanium acid lithium battery heating with phosphoric acid lithium battery low 10 degrees Celsius; each car (the first six Taiwan) dismounting a group of battery, through examination attenuation less than 1%.
Chinese car companies have mergers and acquisitions opportunities
In talking about "sankei shimbun of Japan recently articles says a domestic car company" electric car battery frequent faults, the company independent research and development technology suspect "by ChenQingQuan very rare in evaluation, he thinks the company" as a national company, to new energy (car) input so big, affect the operation of the open - no matter what others say - this is valuable."
Together with this, he also to the company put forward some Suggestions: "it now problem is more closed, (for center technology protection), and the combination of comprehensive university (and masonry company) cooperation is little. I hope they met in a few recent zigzag) can prompt improvement, adjustment, trust they will do so. The most important thing is still in the various aspects of the resources," collaboration "is the main open." He pointed to the auspicious auspicious like Volvo for example, "I not long ago to Sweden's time, with some Volvo employees have a chat, they said was LiShuFu after purchase, the enthusiasm of the higher development. Their way is well worth learning"
"About the company's prospects, I still is very good." The ChenQingQuan concluded.
About has Fried an uproar in the "universal acquisition A123 defeat" by ChenQingQuan also talked about his idea: "A123 and many manufacturers have cooperation, includes general, gmac-saic, etc., they must be have their own (beat) technology, at least better than universal. But if universal successfully acquired A123 will be successful? I see also is bad to say, what now 'flicker' company too much. Polymer lithium battery but nowadays Europe is in" the debt crisis "difficult period, this is also the Chinese company merger and acquisition of foreign beat company a good chance."
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