Nano-optical battery sensor
| Reference number | |
| Coordinator | Insplorion Sensor Systems AB |
| Funding from Vinnova | SEK 500 000 |
| Project duration | July 2015 - March 2016 |
| Status | Completed |
Important results from the project
The main objectives for the project with its time and financial framework is considered to be achieved. The project has verified the technology function and its large market potential, where the aim is to more efficient measure the charge and ageing status of vehicle batteries.
Expected long term effects
The sensor technology has proven to be serve as a tool for real-time measurement of the charge status of Li-ion batteries. The most promising future design of implementation is considered to be sensor coated optical fibers inside the battery. This solution is considered to be the simplest and most cost-effective for miniaturization, and enables synchronous detection of multiple parameters, known as multiplexing, such as charge status, temperature and ageing mechanisms. The project has resulted in at least two applications for future funding support.
Approach and implementation
The battery cells used in the project were manufactured at KTH and Uppsala University, where different solutions for optical access has been verified. Together with Chalmers University of Technology, the battery cells were later tested in combined experiments with optical and voltammetric equipments. The future sensor design has in cooperation with battery manufacturers and potential end customers been confirmed to optical fibers with deposited nano sensors.