SAE Update - October 2022 - 17
Driving sustainability with
evolving battery chemistries
TECH FOCUS:SUSTAINABLE
ENERGY TECHNOLOGY
road but contribute a startling 25
percent of all transportation
sector greenhouse gas
emissions, according to recent
EPA estimates. The
disproportionate carbon
emissions from the sector are
dwarfed by criteria pollutants:
MHD vehicles contribute more
than 60 percent of tailpipe
nitrogen oxides ( " NOx " ) and
particulate matter ( " PM " ). In
2020, approximately 60 percent
of those NOx and PM emissions
occurred in urban areas, typically
concentrated around freeways,
ports, and warehouses.
Since MHD vehicles often
spend a significant amount of
time idling, electrifying these
vehicle classes is essential to
reduce unhealthy emissions in
urban areas, protecting the
health of both workers and local
residents. The societal benefits
are significant: A 2021 study by
EDF found that eliminating
tailpipe emissions from new
medium- and heavy-duty
vehicles by 2040 could provide
up to $485 billion in health and
environmental benefits as a
result of pollution reductions.
Like all technologies, LFP
batteries have pros and cons. For
example, this technology does
UPDATE
The author (second from right) speaking at a WCX 2022 session,
" Sustainability: It's in Everyone's Business Interest. "
not currently offer the energy intensity of other
battery chemistries-but historically rapid acceleration
and 400+ miles of range are not necessary for all
vehicle applications.
LFP batteries also hold unique potential for second
life applications. After several years of usage, vehicle
batteries may no longer offer their original range but
can still offer valuable storage capacity. Because they
offer more charge cycles throughout their lifetimes,
LFP batteries are better suited for use in stationary
storage than other chemistries. Furthermore, battery
engineers are just scratching the surface of recycling
technologies to create a circular economy for battery
minerals. Second-life and end-of-life recycling is a
dramatic improvement over petroleum fuels, which
are extracted, refined, and combusted into the
atmosphere with no possibility for recycling.
As batteries and electric motors proliferate in
applications from e-bikes to tractor trailers, industry
must continue research and development of new
chemistries to find other win-win scenarios like LFP
batteries in commercial vehicles. n
October 2022
17
SAE International
SAE Update - October 2022
Table of Contents for the Digital Edition of SAE Update - October 2022
SAE Update - October 2022 - Cov1
SAE Update - October 2022 - Cov2
SAE Update - October 2022 - 1
SAE Update - October 2022 - 2
SAE Update - October 2022 - 3
SAE Update - October 2022 - 4
SAE Update - October 2022 - 5
SAE Update - October 2022 - 6
SAE Update - October 2022 - 7
SAE Update - October 2022 - 8
SAE Update - October 2022 - 9
SAE Update - October 2022 - 10
SAE Update - October 2022 - 11
SAE Update - October 2022 - 12
SAE Update - October 2022 - 13
SAE Update - October 2022 - 14
SAE Update - October 2022 - 15
SAE Update - October 2022 - 16
SAE Update - October 2022 - 17
SAE Update - October 2022 - 18
SAE Update - October 2022 - 19
SAE Update - October 2022 - 20
SAE Update - October 2022 - 21
SAE Update - October 2022 - 22
SAE Update - October 2022 - 23
SAE Update - October 2022 - 24
SAE Update - October 2022 - 25
SAE Update - October 2022 - 26
SAE Update - October 2022 - 27
SAE Update - October 2022 - 28
SAE Update - October 2022 - 29
SAE Update - October 2022 - 30
SAE Update - October 2022 - 31
SAE Update - October 2022 - 32
SAE Update - October 2022 - 33
SAE Update - October 2022 - 34
SAE Update - October 2022 - 35
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