Abstract: With the emphasis of Chinese government on new energy vehicles,the development trends of power battery mainly includes LFP cell,NMC cell,LTO cell. Owing to its excellent characteristics, long life,high power,high security,etc,LTO battery can be applied to the city bus,storage areas,industrial equipments,etc. In this paper,the development trend,competition pattern,technical field and application market of lithium titanate in China are analyzed and being data mining systematically,which carried out by systematic search for the Chinese patent of lithium titanate. The results of analysis indicate that the preparation technology of lithium titanate is still not mature enough,and the mainstream of lithium titanate preparation technology is still modified. To alleviate or even solve the flatulence problem of lithium titanate battery,the modifications of lithium titanate material and electrolyte, and new formation process are still the main trend. The lithium titanate technology was mainly mastered in China,Japan and the United States,and the main market is in China. The application field of lithium titanate is gradually expanding,but it is mainly concentrated in the field of new energy vehicles and energy storage,and there are very large market potentials in other areas, which will be the future application trends of lithium titanate patents.

Key words: lithium titanate, patent distribution, technical field, data mining

摘要： 随着国家对新能源汽车的重视，动力电池的发展方向主要包括磷酸铁锂电池、三元电池和钛酸锂电池。而由于钛酸锂电池具有寿命长、功率高、安全性强等特点，其可以应用于城市公交、储能、工业化设备等领域。通过系统检索中国钛酸锂专利文献，对钛酸锂在中国的发展趋势、竞争格局、技术领域、应用市场等进行了数据挖掘和分析。分析表明，钛酸锂的制备技术依旧没有达到成熟，钛酸锂制备技术的主流依旧是改性；解决或缓解钛酸锂电池的胀气问题，主要是进行钛酸锂材料的改性、电解液改性及化成方法的改进为主；钛酸锂技术主要来自于中日美，并且中国为主要市场；钛酸锂的应用领域逐渐开始扩展，但主要集中于新能源汽车和储能领域，在其他领域的应用还有非常大的市场潜力，这将会是钛酸锂领域未来专利申请的趋势所在。

关键词: 钛酸锂, 专利分布, 技术领域, 数据挖掘