Printed solid-state lithium-ion battery for integration with solar panel

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The goal of this research project is to develop a novel printed lithium-ion battery process that can be integrated**with a solar panel. Our industrial partner SolarGrid Energy Inc. (SGE) manufactures solar street lights that**contain a solar panel, a battery, an LED light and the required electronics. Currently, SGE is constrained by the**battery technology on the market that is not optimized for this application in terms of weight,**manufacturability, performance and safety. We propose to create a battery printing process that can be**integrated into SGE's current solar panel assembly process with relatively few modifications. This will ensure**SGE's requirements are met and that SGE can exploit the research results in their manufacturing process. The**printed battery can be inserted in the solar panel in between the silicon solar cells and the back encapsulation.**This saves weight because no separate encapsulation is needed for the battery. We will employ screen printing**as a proven, cheap, simple and scalable manufacturing technology. We will implement state-of-the-art Li-ion**battery concepts for the first time in a printed battery including a novel solid-state electrolyte and an anode-free**structure. These concepts will ensure that we meet SGE's requirements in terms of performance, durability and**safety. We will study the printed batteries in terms of electrical performance and microstructure. We will focus**on the electrolyte and its interfaces as a particularly critical component of the battery structure. This will be**optimized to ensure good cycle lifetime. Throughout the project, we will be in constant contact with our**partners at SGE to ensure that our processes and devices are compatible with their products and manufacturing**processes. The final report will form the basis for SGE to take a decision on whether to pursue a follow-on**research project and ultimately integrate the novel printed battery in their products. If successful, the results of**this project will help SGE maintain and expand their position in the growing market for smart green energy**generation and storage.