Engineering Creativity Award: Lithium Iodine Battery Systems

工程创意奖：锂碘电池系统

• 批准号: 8811545
• 负责人: Jerome Kruger
• 金额: $ 8.94万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-09-01 至 1992-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8811545&HistoricalAwards=false
• 关键词: Engineering; Creativity; Award; Lithium; Iodine

The primary objective of this research effort are to enhance the power density capabilities of the lithium iodine (PZVP) battery system and to provide an in-depth understanding of the role of the cathode in the battery rate limiting mechanism particularly with respect to discharge current. The plan of research is as follows. First the batteries will be fabricated employing the new cathode preparation procedure. General discharge behavior at low rates will be determined for comparison to conventional batteries. High rate discharge performance will then be evaluated. In order to evaluate the effectiveness of the cathode modification a number of methods will be utilized. Laser holographic interferometry and electrochemical impedance spectroscopy will be used in-situ to monitor the uniformity of discharge and the lithium iodide electrolyte conductivity respectively. Post-test scanning electron microscopy will be employed to determine the influence of the modification on discharte product formation and correlation with in- situ testing results. Depending on the results obtained further cathode preparation modifications may be included. Potentially an order of magnitude increase in power delivery capability is attainable by modifying cell chemistry and manufacturing procedure. This enhanced battery system could find new application in a broader class of implant devices including multi-input/output programmable pacemakers, implantable defibrillators, implantable drug delivery systems as well as other important industrial and deep space applications.

这项研究工作的主要目标是增强能力 锂碘（PZVP）电池系统的密度能力， 为了深入了解阴极在 特别是关于放电的电池速率限制机构 电流 研究计划如下。 首先，电池将 采用新的阴极制备过程制造。 一般 将确定低速率下的放电行为，以与 传统电池 高倍率放电性能将是 评估。 为了评估阴极的有效性 修改将使用许多方法。 激光全息 将使用干涉测量法和电化学阻抗谱法 原位监测放电的均匀性和碘化锂 电解质电导率。 试验后扫描电子 显微镜将被用来确定的影响， 对离散产物形成的修正以及与信息的相关性 现场测试结果 根据进一步获得的结果 可以包括阴极制备改进。 潜在的一个数量级的增加，在电力输送 通过改变电池化学和制造工艺， procedure. 这种增强的电池系统可以在以下方面找到新的应用： 包括多输入/输出的更广泛类型的植入装置 可编程起搏器、植入式起搏器、植入式药物 运载系统以及其他重要的工业和深空 应用.