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，印刷电子作为实现超低成本电子系统以及在柔性基板上实现电子产品的技术而受到关注。 提议的应用包括 RFID 标签和嵌入​​式传感器。 鉴于人们对低成本标签和传感器的兴趣，人们对印刷电池的兴趣也随之高涨。 不幸的是，将传统电池集成到此类系统中的成本高得令人无法接受。 因此，我们需要一种能够以低成本实现并满足这些应用的性能需求的印刷电池技术。 传统的印刷碱性电池无法提供所需的能量密度，而锂电池由于其对氧的敏感性太强，成本太高而无法集成。 需要一种解决这些权衡的电池技术。在这项工作中，研究人员正在开发一种基于锌/银基氧化银化学物质的新型印刷电池技术。 制造锌/银电池所需的各种金属和金属氧化物的纳米粒子墨水是通过凹版印刷和气动点胶合成和印刷的。 可印刷的纤维素/聚合物 KOH 电解质被印刷为电解质/隔膜层。 基于有希望的初步结果，对材料和印刷工艺进行了广泛的优化，以实现原电池的能量密度与最先进的锂电池相当，但具有更传统碱性电池的可制造性和低成本。 整个电池印刷在塑料上，从而可以直接集成到低成本印刷电子系统中。