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

Thermal Runaway Modeling and Calibration of an LFP Battery Cell

thermal runaway model

This post presents an example of the Thermal Runaway Modeling and Calibration of an LFP Battery Cell using the ARC device, the HWS test protocol and Simcenter Amesim. An abuse test is the most direct way to challenge the thermal stability limits of a Li-ion cell and characterize the thermal runaway phenomena. The Accelerating Rate Calorimeter (ARC) test … 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

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

Fire Mitigation Strategies

options for thermal barriers

Author: Nrusimhan Seshadri, Balance Batteries Having looked at the challenges and regulatory standards relating to fire hazards posed by Li-ion batteries in the previous article, in this article we will have a look at some of the fire mitigation strategies deployed across 10 BEVs in the current market. The choice of thermal barrier materials (TBMs) for a … Read more

What Happens if a Cell goes into Thermal Runaway?

battery cell in thermal runaway

Author: Nrusimhan Seshadri, Balance Batteries Thermal hazards of (Li-ion batteries) LiB’s are well known. The spontaneous exothermic release of energy from LiBs when subjected thermal, mechanical and/or electrical abuse is referred as thermal runaway. Though the chances of thermal runaway in modern EV’s are extremely low, the danger posed  by EV battery fires can’t be … Read more

What is Calorimetry?

adiabatic calorimeter designed for battery testing

Author: Mario Toubes-Rodrigo, Application Specialist, H.E.L Group Calorimetry is a branch of thermodynamics that deals with heat transfer quantification. Heat can be transferred during a variety of processes, such as chemical reactions, phase changes, or dissolution of solutes in a solvent. Calorimetry follows the first law of thermodynamics, which states that energy cannot be created … Read more

Battery Thermal Runaway

Lithium-ion batteries power devices ranging from smartphone and laptops to electric vehicles; highlighting how essential they are to our everyday lives. However, despite their widespread use, safety concerns persist. Here, battery thermal runaway can lead to catastrophic explosions, fire and generation of toxic smoke. Therefore, mitigating these risks will be essential for the mass market … Read more

Battery Management System

Batteries are the heart of an Electric Vehicle but the Battery Management System is more like the brain which keeps the Heart pumping out electricity to the Motor safely and at required output. Electric

Thermal Runaway vs Electrical Energy

thermal runaway energy vs electrical energy for smaller cells

The energy released during Thermal Runaway versus the electrical energy stored in a battery. The energy released during Thermal Runaway (TR) versus the stored electrical energy. A number has been bandied around for a long time that the energy released in a TR event was 2 to 6 times the electrical energy stored in the … Read more