Xi Endi Battery C & D12-65LBT lithium titanate material models of the spot because of its structural features, so there are a lot of advantages: 1. good security, electric vehicle batteries the most important point is the need for high security, due to its equilibrium potential of lithium titanate high , not in the negative electrode of lithium dendrite formation, and has good safety. 2. good cycling performance, because it is the "zero strain" materials, and changes in the structure does not occur in the discharge process, with a very superior cycle performance. 3. The quick charging and discharging, lithium ions in the lithium titanate crystals diffusion coefficient is 2 × 10-8cm-2 / s, more than an order of magnitude graphite anode, fast charge and discharge, fast charge is to examine the ability of electric vehicle batteries an important indicator. 4. Wide operating temperature range -30 ℃ -60 ℃, low temperature extrusion capability and embedded lithium will decline, especially the ability to embed lithium titanate negative charge at -30 ℃ does not appear to make a negative result in a short circuit or worsening lithium dendrites occurs, which is not possible with a graphite negative electrode, in a wide range of environments can be quickly charged and discharged, is suitable for vehicle use. 5. The self-discharge, in a post mentioned our experimental data, the positive use of our conventional-type lithium manganese oxide, lithium titanate anode, 60 degrees 28 days storage capacity of the remaining 88%, more than the capacity of the recovery rate of 95%. Recent news, a wholly owned subsidiary of Japan's Seiko company, manufactures and markets measurement and analysis instruments SII Nano Technology Inc. has launched the X-ray equipment for lithium-ion batteries and fuel cells "SEA-Hybrid". The device can detect the speed electrode may mix in some 20 nanometers (a nanometer is equal to 1/1000 mm) small metallic foreign body, and automatically analyzes the elements. The listing of the X-ray device through the X-ray irradiation, from a sample electrode plate, battery separators (separated battery positive and negative) and other metallic foreign body was detected, and identify its elements attribute, the output microscope image shows a number, composition and size of the foreign matter. You can also determine the mixed approach foreign bodies. Previous X-ray equipment from B5 size of 20 nanometers electrodes detect metallic foreign body requires about 10 hours of recording time, while only 3 to 10 minutes the device. The device can be automatically detected in a sample of metallic foreign body elemental analysis and identification. Its characteristics are, in addition to the surface of the foreign body, but also to detect and analyze about 20 nm contain tiny metallic foreign body inside. Previously available only to identify the presence of foreign body surface. With 1 to 4 minutes and subjected to elemental analysis of each of the detected foreign matter. Development of new X-ray transmission method achieves high speed detection time, the use of high-brightness X-ray optical system to achieve the internal analysis.