HIGH-ENERGY, LI RECHARGEABLE BATTERY FOR VAS

高能可充电锂电池将非常有用 对整个心泵开发和其他领域的重要性 植入式或便携式医疗或生物医学设备，提供 能量密度远远超过镍镉电池 目前交付。建议强调创新的 一种极高能量密度可降低的方法 使用能够高放电率的阴极 使用多元共溶剂设计的导电性电解质 配方。最近的实验室结果表明， 高能二价金属卤化物锂的循环性能 系统。拟议中的锂离子电池极高的能量密度- 可还原的正极电池系统导致凸起 体积小、重量轻的VAS内置电池，能量密度为3 比Hi-CD大4倍。但仍能提供超过100分钟的 运行时间，而目前的设计为15-30分钟。 含有可还原阴极的实验实验室电池 由金属卤化物组成的物质将被评估是否排放 容量。高速率性能。和循环寿命。的设计 分离器系统，循环寿命长。和一个可行的超额收费 机构将引入密封圆柱体的施工 细胞。这些原型细胞将被广泛评估 放电率能力和循环寿命。此外，安全 将进行测试。

High energy rechargeable lithium batteries would be of great importance for the entire field of heart pump development and other implantable or portable medical or biomedical devices, providing energy densities well in excess of what nickel-cadmium batteries deliver at present. It is proposed to emphasize an innovative approach in which exceptionally high energy density reducible cathodes capable of high discharge rates are employed with high conductivity electrolytes designed using a multicomponent cosolvent formulation. Recent laboratory results have demonstrated a good cycling capability for a high energy divalent metal halide-Li system. The remarkably high energy density of the proposed Li- reducible cathode battery system results in a projection of a small, light weight VAS internal battery with an energy density 3- 4 x greater than Hi-Cd. and yet able to provide over 100 mins.of operating time, compared to 15-30 mins for current designs. Experimental laboratory cells containing reducible cathodes comprised of metal halides would be evaluated for discharge capacity. high rate performance. and cycle life. Design of separator systems for long cycle life. and a viable overcharge mechanism would lead into the construction of sealed cylindrical cells. These prototype cells would be extensively evaluated for discharge rate capability and cycle life. In addition, safety tests will be conducted.