Printed Ag-Zn batteries with high energy density and air stability for ubiquitous electronics applications

具有高能量密度和空气稳定性的印刷银锌电池，适用于无处不在的电子应用

• 批准号: 0925386
• 负责人: Vivek Subramanian
• 金额: $ 30万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0925386&HistoricalAwards=false
• 关键词: Printed; Ag; Zn; batteries; energy

Printed electronics has received attention in recent years as a technology for the realization of ultra-low-cost electronic systems, and also for the realization of electronics on flexible substrates. Proposed applications include RFID tags and embedded sensors. Given the interest in low-cost tags and sensors, there has been an upsurge in interest in printed batteries. Unfortunately, the cost of integrating conventional batteries into such systems is unacceptably high. What is needed, therefore, is a printed battery technology that is implementable at low cost and meets the performance needs of these applications. Conventional printed alkaline batteries do not provide the energy density required, while lithium cells are too expensive to integrate due their strong oxygen sensitivity. A battery technology that addresses these tradeoffs is required.In this work, the investigators are developing a novel printed battery technology based on a Zn/Ag-based silver oxide chemistry. Nanoparticle inks of the various metals and metal oxides required to fabricate a Zn/Ag battery are synthesized and printed using gravure printing and pneumatic dispensing. A printable cellulosic / polymer KOH electrolyte is printed as an electrolyte / separator layer. Based on promising initial results, extensive optimization of materials and printing processes are being used to realize a primary cell with energy density on par with state of the art lithium cells, but with the manufacturability and low cost of more conventional alkaline cells. The entire cell is printed on plastic, thus enabling direct integration into low-cost printed electronic systems.

近年来，印刷电子技术作为实现超低成本电子系统的技术以及实现柔性基板上的电子技术而受到关注。 建议的应用包括RFID标签和嵌入式传感器。 鉴于对低成本标签和传感器的兴趣，人们对印刷电池的兴趣激增。 不幸的是，将常规电池集成到这样的系统中的成本高得不可接受。 因此，需要一种印刷电池技术，该技术可以低成本实现并满足这些应用的性能需求。 传统的印刷碱性电池不能提供所需的能量密度，而锂电池由于其强氧敏感性而太昂贵而无法集成。 在这项工作中，研究人员正在开发一种基于Zn/Ag基银氧化物化学的新型印刷电池技术。 合成制造Zn/Ag电池所需的各种金属和金属氧化物的纳米颗粒油墨，并使用凹版印刷和气动分配来印刷。 将可印刷的纤维素/聚合物KOH电解质印刷为电解质/隔膜层。 基于有希望的初步结果，正在使用材料和印刷工艺的广泛优化来实现具有与现有技术锂电池相当的能量密度的原电池，但具有更传统的碱性电池的可制造性和低成本。 整个电池都印刷在塑料上，因此可以直接集成到低成本的印刷电子系统中。