In-situ instrumentation of cells and power line communication data acquisition towards smart cell development

Battery Cell Temperature Sensing Towards Smart Sodium-Ion Cells for Energy Storage Applications

“…In this work we demonstrate our thermistor sensors, developed for 21700 format cylindrical LIBs, offer excellent sensing performance, and minimal impact on cell functionality, with results reported from a preliminary 100 cycle ageing profile. This expands on our previous works, detailing the instrumentation process [14]. This study is divided into two parts, firstly demonstrating the functionality of our sensors in commercial LIBs over a longer-term study; secondly, we complete the initial steps to prove this technology and processes can be transferred over to NIBs.…”

“…Thermistor based sensing offers a low-cost alternative (sensors available from $0.10), while permitting parallel connection of sensors, thus distributed sensing is possible; albeit 10 mm resolution reported in our previous work [14]. Our method of cell instrumentation has previously been detailed [14], thus will only briefly be introduced here.…”

“…Thermistor based sensing offers a low-cost alternative (sensors available from $0.10), while permitting parallel connection of sensors, thus distributed sensing is possible; albeit 10 mm resolution reported in our previous work [14]. Our method of cell instrumentation has previously been detailed [14], thus will only briefly be introduced here. This method overcomes imprecise sensor locations (e.g., in the designs reported previously [25]) and leads the way towards automating instrumentation for fabricating larger volumes.…”

“…Protecting the sensors with a heat-shrinkable plastic tube was preferred in our previous work, testing with 21700 format LIBs [14]; the resulting thermistor array is shown in Fig. 1.…”

“…III. METHODOLOGY Instrumented 21700 LIBs have been detailed in our previous work [14]. Briefly, the LIBs used in this work have a vacant volume in the core, remaining from the manufacturing process.…”