Performance Imbalances in Parallel-Connected Cells

cells in parallel

Efficiently addressing performance imbalances in parallel-connected cells is crucial in the rapidly developing area of lithium-ion battery technology. This is especially important as the need for more durable and efficient batteries rises in industries such as electric vehicles (EVs) and renewable energy storage systems (ESS). Written by: Gabriele Piombo, Visiting Scholar at the Department of … Read more

Cell-to-Cell Variation and Deterministic Pack Effects

BrillPower cell to cell variation

How Random Cell-to-Cell Variation and Deterministic Pack Effects Determine Pack Capacities was a poster presented by Brill Power at the Oxford Battery Modelling Symposium 2024. This looked at how thermal gradient impacts battery cell degradation and consequently battery pack capacity. Written by: Jorn Reniers, Martin Rogall and Adrien Bizeray, Brill Power, Oxford, UK 1. Cell-to-cell … Read more

Genuine P45B Tests

Molicel P45B testing

Initial tests of the Molicel P45B 21700 cells. By Stéphane Melançon, Melstronic Conditions: Measured with calibrated precision class 0.01 instruments for rated capacity measurement STANDARD at C/5 …. and more. All measurement including recharge were made using 4 wire (Kelvin) connections for top accuracy. 2 samples were tested: At C/5 At 1C : At 2C : … Read more

Investigation of Catastrophic Battery Failures

field failure investigation of escooter battery

This Investigation of Catastrophic Battery Failures looks at field failures of lithium ion batteries in devices such as e-scooters and e-bikes. This is a summary of: Holloway, J.; Maharun, M.; Houmadi, I.; Remy, G.; Piper, L.; Williams, M.A.; Loveridge, M.J. Developing Preventative Strategies to Mitigate Thermal Runaway in NMC532-Graphite Cylindrical Cells Using Forensic Simulations. Batteries 2024, 10, 104. … Read more

Impact of Formulation and Slurry Properties on Lithium-ion Electrode Manufacturing

Impact of Formulation and Slurry Properties on Lithium-ion Electrode Manufacturing

The impact of formulation and slurry properties on lithium-ion electrode manufacturing is significant. The combination of materials in the electrodes, including the active material, conductive additive, and binders, plays a crucial role in determining the characteristics and performance of LIBs. Dr. Carl Reynolds, Dr. Mona Faraji Niri, Dr. Marc Francis Hidalgo, Robert Heymer, Dr. Luis … Read more

Cell Component Mechanical Tests

zwickroell tensile testing of 6 um thick copper foil

Cell component mechanical tests are extensive and required in order that a more detailed understanding of how the cells behave can be established. The battery cell is a complex: chemistry, electrical, thermal and mechanical system. Cycle ageing is seen as a deteriation in the chemistry of the cell, but should also be considered as a … Read more

Enhancing Li-Ion Battery Safety

OsecoElfab DualGard breather and vent disc

Integrating Pressure Relief and Breather Devices for Overpressure Mitigation for battery safety. Author: OsecoElfab The rapid growth of Li-Ion batteries in various industries, including electric vehicles, portable electronics, and renewable energy storage has thrown a spotlight onto a critical battery safety concern: thermal runaway and its potential to trigger overpressure explosions. Managing Thermal Runaway To … Read more

Dry vs Wet Separator Technology

ZIMT battery separator

A look at dry vs wet separator technology and a look at the next developments in the roadmap. Author: Paul Wen from ZIMT The separator is a porous membrane placed between electrodes of opposite polarity, permeable to ionic flow but preventing electric contact of the electrodes. The dry vs wet differentiation is essentially the difference … Read more

Rupture Disc Integration for Overpressure Mitigation

OsecoElfab image of a burst disc

Enhancing Li-Ion Battery Safety: The Imperative of Rupture Disc Integration for Overpressure Mitigation Author: OsecoElfab Introduction The rapid growth of Li-Ion batteries in various industries, including electric vehicles, portable electronics, and renewable energy storage, brings to the forefront a critical safety concern: thermal runaway and its potential to trigger overpressure explosions. To address this imminent … Read more

EV and Hybrid Qualifications

Motor Skills live working image

EV and Hybrid Qualifications: High Voltage automotive training comes in several different flavours, and all our courses are made relevant to the work you are going to do using examples and scenarios from our long experience in the real world of vehicle development engineering. EV and Hybrid Qualifications: High Voltage automotive training Level 1 is basic hazard awareness … Read more