SBIR Phase I: High Capacity Anode Materials for Lithium Ion Batteries

SBIR第一期：锂离子电池高容量负极材料

• 批准号: 9760456
• 负责人: Michael Wixom
• 金额: $ 10万
• 依托单位: T/J Technologies, Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-01-01 至 1998-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9760456&HistoricalAwards=false
• 关键词: SBIR; Phase; Capacity; Anode; Materials

*** 9760456 Wixom This Small Business Innovation Research Phase I project will develop advanced materials for lithium ion battery electrodes. These materials will be processed to increase the reversible lithium storage capacity and decrease the irreversible capacity through control of their microstructure. The first task will be to systematically vary the process conditions applied to at least two materials typically used in commercial batteries. The electrode microstructures will be evaluated by diffraction and porosimetry, and changes in the microstructure will be related to process conditions. Electrodes will be fabricated and assembled into test cells using metallic lithium as the reference and counter electrode. The cells will be cycled to measure capacity and polarization. A process design will be developed to demonstrate economic as well as technical feasibility. Phase II will transition from highly controlled laboratory-scale processes to larger industrial processes presently used in ceramic powder processing This project will improve the volumetric capacity and operating times of rechargeable lithium ion batteries. The market for these batteries is expected to grow to over $250 million by 2000. Operating time is perhaps the single most important selection criterion for applications such as camcorders, laptop computers, and cellular communication. ***

* 9760456 Wixom 这个小企业创新研究第一阶段项目将开发用于锂离子电池电极的先进材料。 这些材料将经过加工，通过控制其微观结构来增加可逆锂储存容量并降低不可逆容量。 第一项任务是系统地改变应用于商业电池中通常使用的至少两种材料的工艺条件。 电极的微观结构将通过衍射和孔隙率测定法进行评估，微观结构的变化将与工艺条件有关。 将使用金属锂作为参比电极和对电极，制造电极并组装到测试电池中。 将对电池进行循环以测量容量和极化。 将制定一项工艺设计，以证明经济和技术的可行性。第二阶段将从高度控制的实验室规模的工艺过渡到目前用于陶瓷粉末加工的大型工业工艺 该项目将改善可充电锂离子电池的体积容量和工作时间。 预计到2000年，这些电池的市场将增长到2.5亿美元以上。 对于便携式摄像机、笔记本电脑和蜂窝通信等应用而言，工作时间可能是最重要的选择标准。 ***