HIGH ENERGY LITHIUM RECHARGEABLE BATTERY SYSTEM

高能锂充电电池系统

• 批准号: 3500719
• 负责人: MORRIS EISENBERG
• 金额: $ 4.95万
• 依托单位: ELECTROCHIMICA CORPORATION
• 依托单位国家: 美国
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-02-24 至 1986-08-14
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3500719
• 关键词: amorphous solid; auxiliary heart prosthesis; biomedical device power system; clinical biomedical equipment; electrochemistry; electrodes; electrolytes; lithium; molybdenum; sulfides; titanium

It is proposed to investigate a new approach towards a high energy rechargeable lithium battery system for use in percutaneous or transcutaneous transmission of energy in the artificial heart program e.g. for Ventricular Assist Systems (VAS). The new approach is based on the development of a more energetic cathode material which operates by the topochemical insertion mechanism of lithium ions during the discharge process. In this approach, a specially prepared amorphous trisulfide would be used alone or with an addition of TiS2 as a high energy cathode material. This approach appears very promising for reaching even higher rate capabilities with good rechargeability. It is anticipated that the new approach could provide rechargeable lithium batteries with practical energy densities in the range of 98-143 WH/Kg compared to only 24-33 WH/Kg for the present nickel-cadmium cells. The importance of such a large increase in energy density for this field needs hardly any elaboration. There are many important problems that need to be solved on the road towards practical hardware, but in Phase I, we propose to concentrate on the problem of the cathode, its energy density and cycling capacity. On this basis the complete cell development would then be undertaken in Phase II for the VAS device applications.

有人建议研究一种新的方法来获得高能 可充电锂电池系统，用于经皮或 人工心脏程序中能量的经皮传输，例如 用于脑室辅助系统(VAS)。新的方法是基于 开发一种能量更高的正极材料，它由 锂离子在放电过程中的电化学插入机理 进程。 在这种方法中，将使用专门制备的无定形三硫化物 单独或与添加作为高能阴极材料的TiS2一起使用。这 这种方法似乎非常有希望达到更高的速率能力 具有良好的可充性。 预计新的方法可以提供可充电的锂 实际能量密度在98-143Wh/kg范围内的电池 相比之下，目前的镍镉电池只有24-33Wh/kg。这个 如此大的能量密度增加对该领域需求的重要性 几乎没有任何阐述。 在道路上有许多重要的问题需要解决 走向实用的硬件，但在第一阶段，我们建议专注于 阴极的问题，它的能量密度和循环能力。在……上面 在此基础上，将分阶段进行完整的细胞发育 II适用于VAS设备应用。