PRODUCTS & SERVICES
Performance testing
A battery cell test system with fast current response is able to provide
manufacturers a more efficient and cost-effective method for product verification
As the key component of
electric vehicles, the lithiumion
battery (LIB) must undergo and
pass each car manufacturer’s most
stringent performance tests to guard
personal safety and keep risks at a
minimum. These diverse tests are
complex and time-consuming. It
requires specialized test equipment
to test multiple channels
simultaneously in order to reduce
the time for the complete product
verification. The Chroma 17011
regenerative AC/DC bidirectional
battery test system passed the
demanding performance tests of
major Japanese battery
manufacturers. The test device
performed with excellence on
aspects such as current response,
measurement accuracy, output
dynamic waveforms, stability, and
controlled feedback speed.
Constant power (CP) is the most
common testing mode for LIB.
However, the CP output is a ected
by electric potential di erences in
the battery’s internal resistance and
easily generates overshoot. Creating
fast output response without
overshoot remains a complex issue
for battery test equipment. LIB
testing requires long-term
simulation of actual driving
conditions and fast output response
to reduce distortions, while running
a LIB beyond the specified working
range will invariably a ect the
battery life to a certain extent,
increase risks in verification, and
deviate the test results. Chroma
o ers excellent CP output
performance with output response
time of less than 3.5m/s and no
power overshoot. Moreover, the
comprehensive safety protection
mechanism makes the Chroma 17011
an ideal solution for LIB testing.
Chroma not only provides
standard stand-alone and system
products, but also develops reliable
and customized integrated services
to provide the best complete
solution depending on battery
shape, electrodes, safety device,
environmental chamber integration,
and more. One particular Taiwanese
materials plant has adopted a
Chroma 17011 equipped with
integrated environmental chamber
158 // January 2020 // www.electrichybridvehicletechnology.com
and fixture that is designed for
simultaneous pouch cell as well as
coin cell battery testing.
Chroma devises its battery testing
devices with low contact resistance,
robustness, temperature uniformity,
durability, and maintainability, while
providing optimal application
flexibility through compatibility with
a wide range of battery products.
Following this, Chroma consults the
user’s habits and the moving lines
through the production space.
Chroma then o ers a customized
design that enhances daily
operation, improves test results, and
solves all testing problems.
The Chroma 17011
test system verifi es
electric vehicle
batteries quickly,
comprehensively
and accurately
FREE READER INQUIRY SERVICE
To learn more about Chroma,
visit: www.magupdate.co.uk/PEHV
CHROMA 17011 KEY FEATURES
• Current output up to 1200A
• Fast current response
• Multiple current range with accuracy
• CC-CV transition with no delay and with
no overshoot
• CP mode with fast response and with
no overshoot
• Fast Waveform simulation with update
rate up to 10m/s and cut-off judgement
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