Long-life, High-Voltage Lithium-Ion Battery for Portable Cardiac Defibrillators

描述(申请人提供)：可充电锂离子电池(LIB)为越来越多的便携式医疗设备提供电力。由于重量轻，电压高，设备的性能在可接受的重量范围内得到了改善，便于携带。然而，电池的可靠性、安全性、使用寿命和工作温度范围等问题限制了它们的接受。尤其是自动体外除颤器(AED)在现场以及医院、机场、家庭和工作场所的各种使用周期中使用。带有LIBS的单元可以在不同的电荷状态和宽广的极端温度下看到较长的储存期。Giner，Inc.已开发出具有卓越化学稳定性、不可燃性和宽温度范围的新电池电解液，将使用一种新的5-V正极材料进行评估，以安全地提高锂离子电池的比功率和比能量，用于更轻和更紧凑的单元。新的电池化学有可能将电池工作电压从3.6V提高到4.5V。吉纳公司将与 AEDs的商业生产商Zoll Medical Corp.将开发和展示下一代锂离子电池，以促进这些紧急护理设备在更广泛的环境和使用周期中提高可靠性和扩展功能。将进行测试，以表明与商业电池相比，电池的运行寿命和电荷保持能力都有所提高。实验电池将用新材料建造，并在0摄氏度至50摄氏度的温度范围内，以广泛的充放电速率进行循环。新电池还将在与过充电和过放电对应的电压范围内进行测试，以证明用户安全性和滥用容忍度的改善。测试将在吉纳的电池工程开发实验室进行，该实验室允许同时测试多达24个电池的电池周期。所有结果都将与代表最先进水平的商用锂离子电池的性能进行比较。基于这些结果和Zoll的投入，电池组设计将被开发为目前正在开发的新型AED的原型。第一阶段确定的设计和性能参数将在第二阶段用于制造全电池原型，这些原型将进行测试并与新的Portabe AED设计集成。样机将具有必要的I/O通信和微处理器，以确保与新设备的安全可靠集成。 与公众健康相关：拟议的材料改进将提高便携式医疗设备(如自动体外除颤器)中使用的可充电锂离子电池的性能、安全性、可靠性和使用寿命。较高的电池电压将允许设计具有较少串联电池的较小电池组，以实现必要的设备电压和功率。改进后的电池将具有更好的存储容量保持能力，以提高现场紧急医疗AED服务的总使用寿命和可靠性。

DESCRIPTION (provided by applicant): Rechargeable lithium-ion batteries (LIB) are providing power for an increasing range of portable medical devices. With their light weight and higher voltages, device capabilities have improved within acceptable weight limits for portability. However, the batteries' issues with reliability, safety, service life and operating temperature range, have limited their acceptance. Automated External Defibrillators (AEDs) in particular are used in a wide variety of use cycles in the field and in hospitals, airports, households and workplaces. The units with the LIBs can see long storage periods in different states of charge and at wide temperature extremes. Giner, Inc. has developed new battery electrolytes with exceptional chemical stability, non- flammability and wide temperature range, which will be evaluated with a new 5-V cathode material to safely increase specific power and specific energy of lithium-ion batteries for use in lighter and more compact units. The new battery chemistry has the potential to increase cell operating voltages from 3.6 V to 4.5 V. Giner, Inc. will team with a commercial producer of AEDs, Zoll Medical Corp., to develop and demonstrate the next generation of lithium ion batteries to facilitate increased reliability and expanded capabilities o these emergency care devices in a wider range of environments and use cycles. Testing will be conducted to show the increased operating life-time and charge retention compared with commercial cells. Experimental cells will be built with the new materials and cycled with a wide range of charge and discharge rates and at temperatures over the range of 0oC to 50oC. The new cells will also be tested in voltage ranges corresponding to overcharge and overdischarge to demonstrate improvements in user safety and abuse tolerance. Testing will be conducted at Giner's battery engineering development laboratory which permits simultaneous battery cycle testing of up to 24 cells. All results will be compared with performance of commercial lithium-ion cells which represent the state-of-the-art. Based on these results and input from Zoll, a battery pack design will be developed as a prototype for new AEDs which are currently under development. The design and the performance parameters determined in Phase I will be used in Phase II to fabricate full battery prototypes that will be tested and integrated with new portabe AED designs. The prototypes will have the necessary I/O communication and microprocessors to ensure safe and reliable integration with new devices. PUBLIC HEALTH RELEVANCE: The proposed material improvements will enhance the performance, safety, reliability and operating life of rechargeable lithium-ion batteries used in portable medical devices, such as automated external defibrillators (AEDs). Higher cell voltage will permit the design of smaller battery packs with fewer cells in series to achieve the necessary device voltage and power. The improved batteries will have better capacity retention on storage to increase total service life and reliability for emergency medical AED services operating in the field.