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BATTERY FAILURE CHAMBER

BEAMTIME EDITION - SERIES II

Main metal enclosure designed to control and contain battery failure experiments, whilst capturing in-situ 3D microstructural data via. X-ray imaging.
Second enclosure designed for diffraction (XRD) studies to monitor the phase consistution and crystalline structure of the battery's materials before and after failure.
This chamber was used by the Zero Institue at Oxford University to capture high-speed X-ray images at Diamond Light Source (DLS).
Battery failure can be instigated through electrical failure and/or controlled-heating programmes whilst performing acoustic/ultrasound diagnostics and capturing electrical performance data.
Battery failure enclosure
Battery failure enclosure
Battery failure enclosure opened
Battery failure enclosure opened
Battery failure enclosure - battery sub-holder
Battery failure enclosure - battery sub-holder
Battery failure enclosure - feet
Battery failure enclosure - feet
Battery failure enclosure opened
Battery failure enclosure opened
Aluminium welding battery failure enclosure flange
Aluminium welding battery failure enclosure flange

  • Sealed enclosure to withstand and contain battery failure

  • Battery electrical contacts for charge/discharge and electrochemical testing

  • 3x thermocouple inputs

  • Programmable heating

  • Acoustic/Ultrasound diagnostics

  • Gas ports for sampling and purging

SPECIFICATION

Li-ion battery and acoustic sensing
Li-ion battery and acoustic sensing

  • Tubular design with all electrical and gas connections assembled to the lid

  • Gasket flange design for fast battery changes

  • Simple disassembly for easier cleaning

  • Customisation possible with experiment requirements

BATTERY CHAMBER

Battery failure enclosure
Battery failure enclosure

FABRICATION

  • Aluminium construction for X-ray transmission

  • Individual holders for acoustic transducers - adjustable compression against the battery

  • Swivel feet to match stage fixings

Battery failure enclosure - subassembly parts
Battery failure enclosure - subassembly parts

  • Enclosure can house battery sizes up to 215mm (L) x 110 mm (W) - capacities to be discussed

  • Sub-assembly for the battery before fitting into enclosure

  • Aluminium block housing the heating cartridges with thermocouple fixings

  • Single-cell pouch cells used in this experiment

  • Interchangable sub-assembly depending on the battery format being tested (cylindrical, pouch, coin cell etc.)

  • Simple electrical connections to quickly swap damaged connections/sensors

BATTERY HOLDER

Battery in it's sub-assembly, with acoustic scanning, electrical charging/discharging and heating
Battery in it's sub-assembly, with acoustic scanning, electrical charging/discharging and heating

SOFTWARE CONTROL

  • PID control of heating programmes (manual v.s. heat sink wait)

  • Visualisation of 3 thermocouple sensors

  • Automatic heating shut-off when battery thermal runaway detected

  • Data acquisition

Battery failure beamline chamber - Software
Battery failure beamline chamber - Software
X-ray diffraction battery enclosure
X-ray diffraction battery enclosure
X-ray diffraction battery enclosure
X-ray diffraction battery enclosure
X-ray diffraction battery enclosure
X-ray diffraction battery enclosure

X-RAY DIFFRACTION (XRD) ENCLOSURE

3D-printed enclosure with viewing window - complete battery sub-assembly can be quickly swapped between the high-speed imaging and XRD enclosures.

Get in touch if you are looking for an experimental chamber, or interested in commissioning a bespoke project

Battery failure enclosure at Diamond Light Source Beamline
Battery failure enclosure at Diamond Light Source Beamline

Precision machining partner Minor Detail

Minor Detail FabricationMinor Detail Fabrication
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