Graphene-enhanced, thin, flexible printed battery for electronic wearable and IoT devices - (FLEXIBAT)

用于电子可穿戴和物联网设备的石墨烯增强型薄型柔性印刷电池 - (FLEXIBAT)

• 批准号: 104506
• 金额: $ 151.07万
• 依托单位: ZINERGY UK LIMITED
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=104506
• 关键词: Graphene; enhanced; thin; flexible; printed

The recent boom in wearable and Internet of Things technology, such as smart sensors, fitness watches, has not yet reached its full potential due to one component restricting further development: the battery source. As a result, devices often have bulky batteries, must be plugged in frequently or use workarounds such as spare batteries, fast charging or smart software.State-of-the-art flexible batteries, such as lithium-ion, vacuum-deposited lithium, or zinc batteries each have their advantages and disadvantages. Lithium-ion batteries are cheap to produce, but relatively thick and do not have high power suitable for some wearable or smart packaging applications. Lithium batteries can be very thin, but are more expensive, and have even less energy capacity than lithium-ion. Zinc batteries are very cheap, have a higher energy capacity than lithium-ion, but are only suitable for low power. These constraints all limit the flexibility and form-factor (shape) of batteries for devices.Furthermore, lithium-ion, lithium and zinc batteries utilise carbon collectors and electrodes which, although contributing to the batteries' light weight, limits their electrical conductivity. Replacing the carbon parts with metal would increase the conductivity (and hence power) but crucially increases corrosion that results from the chemical reactions within the battery. This limits the battery power and life time.The **FLEXIBAT** project will develop a novel single-use battery for electronic wearables and Internet of Things devices, based on zinc-carbon chemistry and metal collectors. The focus of the development is on a special corrosion protective layer for the metal collectors and electrodes using graphene, which will enable a thinner, more flexible and a higher energy battery. We will ultimately develop a technology demonstrator prototype of the full battery system and test it in a controlled environment.To successfully achieve this, the project consortium features the relevant expertise for making the battery, including battery manufacture, materials development, graphene coating, and flexible integrated circuit development and manufacture.

最近蓬勃发展的可穿戴和物联网技术（例如智能传感器、健身手表）尚未充分发挥其潜力，因为电池源这一因素限制了进一步的发展。因此，设备通常配备笨重的电池，必须经常插入电源或使用备用电池、快速充电或智能软件等解决方法。最先进的柔性电池，例如锂离子、真空沉积锂、或锌电池各有其优点和缺点。锂离子电池生产成本低廉，但相对较厚，并且不具有适合某些可穿戴或智能包装应用的高功率。锂电池可以非常薄，但价格更高，而且能量容量甚至比锂离子电池还要少。锌电池非常便宜，比锂离子电池具有更高的能量容量，但仅适用于低功率。这些限制都限制了设备电池的灵活性和形状因数（形状）。此外，锂离子、锂和锌电池使用碳收集器和电极，这虽然有助于电池的轻量化，但限制了它们的电导率。用金属代替碳部件会提高电导率（从而提高功率），但关键会增加电池内化学反应引起的腐蚀。这限制了电池的功率和使用寿命。**FLEXIBAT**项目将开发一种基于锌碳化学和金属收集器的新型一次性电池，用于电子可穿戴设备和物联网设备。开发的重点是使用石墨烯为金属集电体和电极提供特殊的腐蚀保护层，这将使电池变得更薄、更灵活和更高能量。我们最终将开发完整电池系统的技术演示原型，并在受控环境中对其进行测试。为了成功实现这一目标，该项目联合体拥有制造电池的相关专业知识，包括电池制造、材料开发、石墨烯涂层和柔性电池集成电路开发与制造。