All-Solid State Micro-Secondary Battery

1.采用射频磁控溅射法制备了由| V_2O_5阴极/Li_3PO_<4-X>N_X电解质/ Li_XV_2O_5阳极|组成的全固态二次电池。该薄膜型锂离子电池具有良好的重复性、自放电性和可重复性。这表明，目前的电池可以作为电源，具有相当高的可靠性。微型二次电池的基本实验在硅晶片上制备了具有WSi_2缓冲层的薄膜锂离子电池，并成功运行。这意味着这种类型的锂离子可充电电池可以与硅微电子兼容，作为驱动各种类型的大规模集成电路芯片的微型二次电池。基于分子动力学（MD）方法的V_2O_5矩阵中Li离子的计算机模拟通过优化电势参数，首次实现了复杂层状结构V_2O_5晶格的稳定。因此，可以实时模拟单个原子的运动，也可以通过分析结构因子来讨论晶格的稳定性。负载硅太阳能电池的复合型电池的研究发现，目前的锂离子电池可以很容易和有效地由硅太阳能电池充电。这意味着，交流100V电源是不需要充电的电池。因此，有必要开发大面积电池的制备技术、薄膜电池之间串联和并联连接的层叠技术以及薄膜电池之间钝化和隔离的表面涂层技术。

1.Preparation and characterization of all-solid and thin-film type secondary batteryThe all-solid-state secondary battery which is composed of | V_2O_5 catrode/Li_3PO_<4-X>N_X electrolyte / Li_XV_2O_5 anode | was successfully fabricated using an RF magnetron sputtering method. This thin-film type of Li-ion battery exhibited good performances in repetion, self-discharge and reproducible properties. This inticates that the present battery can be used as power sources with quite a high reliability.2.Basic experiments for a micro-secondary batteryThe thin-film lithium-ion battery fabricated on a Si wafer with a buffered layr of WSi_2 operated successfully. It means that this type of lithium-ion rechargeable battery can be used compatibly with Si micro-electronics as a micro-secondary battery for driving a various type of LSI chipps.3.Computer simulation of Li ions in V_2O_5matrices using the molecular dynamics (MD) methodBy optimization of potential parameters, we could stabilize the V_2O_5 lattices of a complicated layr structure at the first time. As a result, it is possible to simulate the movement of indivisual atoms in a real time and also to discuss the lattice stability by analyzing a structural factor.4.Consideration of a composite type battery loaded with a Si solar cellIt was found that the present Li-ion battery can be quite easily and effectively charged by the Si solar cell. This means that AC 100V power supply is not necessary for charging thie battey.5.It will be necessary to develope a technique for getting a large-area battery and a layr-stacking technique for serial and parallel connections between thin film batteries, as well as a surface coating technique for passivation and isolation between them.