Our EV experts at STANLEY Engineered Fastening have analyzed the problem of thermal runaway in detail to understand its mechanism in lithium-ion batteries, which enables us to develop integrated, cutting-edge solutions to prevent its occurrence.
Mechanism of
Thermal Runaway
It’s clear that EVs are the future, with multiple benefits for users, automakers, and – most importantly – the environment
However, there are complexities in EV battery technology that all manufacturers must explore in detail to ensure safety and help prevent battery fires
DOWNLOAD OUR EXPLAINER FOR IN-DEPTH INSIGHTS
DOWNLOAD OUR EXPLAINER FOR IN-DEPTH INSIGHTS
As solution providers to the world’s leading auto manufacturers and industry suppliers, STANLEY Engineered Fastening has nearly a century’s worth of innovative solutions, expertise, and collaboration experience to empower the auto industry toward an electric future. Our role is not just to provide innovative products but to enable quick access to the tools, information, and engineering prowess that our customers require to achieve success in the EV domain.
EXPLORE OUR WIDE RANGE OF
EV & ENERGY STORAGE SOLUTIONS
EXPLORE OUR WIDE RANGE OF
EV & ENERGY STORAGE SOLUTIONS
in EVs are susceptible to thermal runaway
Lithium-ion batteries
fires and explosions
Could lead to major
Leading to extensive damage
to your vehicle,
property, and – at worst – loss of life
Runaway
Self-heating of battery begins at T(runaway), which varies from about 130°C to over 200°C
Leads to fire, explosion & destruction of the battery
Ramp
Battery temperature rises above T-onset to 80°C, which leads to Solid-Electrolyte Interface (SEI) decomposition
Electrolyte decomposes and/or separator begins to melt at 100–120°C
Cathode breaks down above 130°C & cell becomes highly flammable
Onset
T-onset >55°C when battery is subjected to electrical or thermal abuse
operating temperature
Normal operation for EV batteries is 15-45°C
21.5°C is the optimal temperature
Terms of Use
Privacy Policy
Transparency in the Supply Chain
© 2023, STANLEY Engineered Fastening. All Rights Reserved.
Mechanism of Thermal Runaway
Mechanism of Thermal Runaway
Preventing Thermal Runaway
Preventing Thermal Runaway
Terms of Use
Privacy Policy
Transparency in the Supply Chain
© 2023, STANLEY Engineered Fastening. All Rights Reserved.
As solution providers to the world’s leading auto manufacturers and industry suppliers, STANLEY Engineered Fastening has nearly a century’s worth of innovative solutions, expertise, and collaboration experience to empower the auto industry toward an electric future. Our role is not just to provide innovative products but to enable quick access to the tools, information, and engineering prowess that our customers require to achieve success in the EV domain.
EXPLORE OUR WIDE RANGE OF EV SOLUTIONS
EXPLORE OUR WIDE RANGE OF EV SOLUTIONS
Our EV experts at STANLEY Engineered Fastening have analyzed the problem of thermal runaway in detail to understand its mechanism in lithium-ion batteries, which enables us to develop integrated, cutting-edge solutions to prevent its occurrence.
DOWNLOAD OUR EXPLAINER FOR IN-DEPTH INSIGHTS
DOWNLOAD OUR EXPLAINER FOR IN-DEPTH INSIGHTS
If used to substitute an existing thermal management solution, this will result in an overall reduction in the weight of the battery pack and increase the range of the vehicle.
The Thermal Fin can also be used as part of a more significant lightweighting design strategy, reducing the number of cells required in a pack to achieve a specified power output, resulting in huge reduction in weight and cost of the battery pack.
The Thermal Fin has an
advanced lightweight design
from STANLEY Engineered Fastening simultaneously acts as a thermal barrier, preventing heat transfer between cells, and a thermal conductor, transferring heat in both directions to maintain ideal operating temperature.
The Thermal Fin
EV battery engineers are constantly challenged to increase the capacity of the battery to deliver
More power and more range for the vehicle.
Typically, there are two methods to achieve this:
If the number of cells increases, so does the design space and overall weight of the vehicle, which in turn has a negative impact on its range.
Increase the number of cells
increasing the energy density of each cell can make them more susceptible to overheating and could result in more battery fires
Increasing the energy density of each cell can make them more susceptible to overheating and could result in more battery fires.
Increase the energy
density of the cell
EV battery engineers at STANLEY Engineered Fastening have delivered innovation against a third option – eliminating battery drain and energy loss by developing mechanical solutions to maintain optimal temperatures within the battery system to improve overall performance.
The ideal operating temperature for an EV battery ranges from
25°C to 35°C.
How efficiently it will transfer heat.
Any deviation can impact how much energy the cell can store and
Fluctuations of 40°C.
Fast charging and vehicle acceleration during standard operation can cause temperature
Performance by as much as 30%.
This extreme deviation from optimum operating temperature can impact
Preventing
Thermal Runaway
How to improve EV performance and safety
Mechanism of Thermal Runaway
Mechanism of Thermal Runaway
Preventing Thermal Runaway
Preventing Thermal Runaway