One article analyzes several major BMS power battery modules in my
country
This article summarizes the key BMS module solutions of the three major
manufacturers of Jinbei New Energy, BYD, and Wanxiang A123.
Guide: This article summarizes the key BMS module solutions of the three
major manufacturers of Jinbei New Energy, BYD, and Wanxiang A123.
This article summarizes the key BMS module solutions of the three major
manufacturers of Jinbei New Energy, BYD, and Wanxiang A123.
Jinbei New Energy BMS battery management module
As a traditional cable company transforming into new energy vehicles,
Jinbei New Energy has not only mastered the domestic excellent BMS core
technology, but also has very rich experience in battery packs. Jinbei has a
number of BMS related patents. Samsung SDI China has been an important strategic
partner of the company for many years. The company’s BMS battery management
module is equipped with Samsung SDI (cells) to ensure the performance and safety
of electric vehicles. Car consistency. At the same time, Jinbei New Energy can
also use domestic batteries to provide customized battery packs according to
customer needs.
Comparative analysis of several domestic BMS power battery modules
Samsung SDI ensures high performance, long life and battery consistency for
the BMS system
Jinbei New Energy has not only built a BMS+PACK business model, but also
has a layout in charging piles, new energy vehicle leasing operations, electric
motor control, extension mergers and acquisitions, and cold chain logistics. It
is a diversified company that explores. At present, the company has formed close
partnerships with car companies such as Shaanxi Tongjia, Zotye, Hebei Changan,
etc., and the early-stage supply has been recognized by customers.
Comparative analysis of several domestic BMS power battery modules
Jinbei New Energy BMS Module
Jinbei New Energy BMS system parameters:
˙Power supply: DC12 (9V-16V)
˙SOC accuracy: ≤2%
˙Total voltage detection accuracy: range 0~200V, error ≤±0.5%
˙Temperature detection accuracy: range -40~75℃, error ≤±1℃
˙Hall current detection accuracy: range -200~200A, error ≤±1%
Jinbei New Energy not only provides high-performance battery management BMS
modules, but also provides a variety of series/parallel PACK battery pack series
products. Including the voltage range of 60V-82V, 20 series + 122 parallel
battery pack Y100, voltage between 75V-123V, 30 series + 80 parallel battery
pack upgrade version Y100S, and voltage 90V-123V, 30 series + 159 parallel
battery pack 111V platform .
BYD (BYD) independent electronic control IC + lithium battery PACK series
products
BYD is the world's largest manufacturer of nickel (alkaline) secondary
rechargeable batteries, and has very good strength in product development and
technical reserves. The products launched by BYD have a series of advantages
such as high performance, safety and reliability, low power consumption and fast
charging, high rate discharge, wide temperature range and long service life.
BYD nickel batteries can reach more than 500 charge and discharge cycles.
Under high current discharge, they have low internal resistance, high voltage
output discharge characteristics, long storage period, and can be quickly
charged as needed. The fastest charging time is 15 minutes, which can adapt to
large Range of temperature, it can also be used under the condition of
-20℃～70℃.
The company's nickel batteries are distinguished in terms of capacity,
ranging from 100mAh to 15000mAh. There are four categories of standard type,
consumer type, high-temperature type and high-current discharge type that are
usually used, which can be applied to any wireless device.
Comparative analysis of several domestic BMS power battery modules
Four types of BYD nickel batteries and related uses
Comparative analysis of several domestic BMS power battery modules
BYD battery internal structure diagram
BYD established the 18650 lithium battery PACK project, and cooperated with
the industry's outstanding battery cell manufacturers, combined with its own
electronic components, IC, SMT, Pack design and processing advantages, can
tailor-made more high-quality and reliable products for end customers.
In terms of electronic control design, BYD provides the BM3451/3452 series
IC independently developed by BYD, both of which have the characteristics of
high precision and high integration. By monitoring the voltage, charge and
discharge current, and ring temperature of each battery, the protection
functions of battery overcharge, overdischarge, overcurrent, and temperature
protection can be realized. The overcharge, overdischarge, and overcurrent
protection delay can be adjusted through external capacitors. Time. In addition,
the BM3451/3452 series can adopt a variety of packaging forms to provide
customers with customized chip sizes.
Comparative analysis of several domestic BMS power battery modules
BYD BM3451/3452 series electronic control IC
Comparative analysis of several domestic BMS power battery modules
BM3451/3452 electronic control IC product series
BYD provides various forms of lithium batteries and new energy products,
mainly including LP series prismatic batteries, SL series polymer batteries,
LC1865/LC1865H series cylindrical batteries, and the power modular battery pack
VM24/36/48 for electric vehicles. Series products.
Comparative analysis of several domestic BMS power battery modules
BYD electric vehicle battery products
Universal A123 (iron phosphate) power lithium battery and power source
module
A123, a subsidiary of Wanxiang Group, is an American company dedicated to
the professional development and production of lithium-ion batteries and energy
storage systems. Its lithium-ion batteries are ahead of lithium-ion batteries
with long life, high energy density, high power, and excellent safety. The
battery market. A123 lithium battery products use lithium iron phosphate as the
battery cathode material, which is made into uniform nano-scale (0.0002 micron)
ultra-small particles (the current general lithium battery cathode material
particles are about 100 times larger than lithium iron phosphate particles),
which greatly Improve the battery's discharge power, A123 lithium iron phosphate
battery can release electrical pulses at 10 times faster than conventional
lithium batteries, while the overall stability and cycle life of the battery are
not affected.
A123 mainly provides lithium iron phosphate cathode materials, and at the
same time, it focuses on the power lithium battery market, and takes lithium
batteries for vehicles as a key development direction. A123 lithium-ion products
simultaneously solve the three problems that affect power lithium batteries in
terms of high power, safety and long life.
In terms of high power, A123 has tested and stated that in the battery pack
developed for plug-in hybrid power, when the depth of discharge reaches 100%,
after 3000 cycles, the battery pack can still maintain 90% of the capacity. In
addition to providing high-discharge lithium iron phosphate batteries, A123
batteries can also provide bursts of energy. A123 has worked with KillaCycle,
the world's fastest electric motorcycle manufacturer, to set a world record of
257 kilometers per hour with a battery module using 990 A123 battery cells
(equivalent to 350 horsepower) and an acceleration of 0-97 kilometers in 1.5
seconds.
A123 lithium battery can be used continuously for more than 15 years on the
basis of daily charge and discharge, which is even longer than the average car
life. It is understood that the A123 lithium-ion battery cathode material uses a
method of adding carbon in an appropriate amount of iron phosphate with a small
particle size, thereby improving the battery's charge-discharge cycle life
characteristics.
In terms of safety, a battery (capacity of 16kwh) designed by A123 for
General Motors Volt electric vehicles can still work normally after the crushing
failure test. If other power lithium batteries are subjected to such high-speed
impact, they will overheat and catch fire.
At the same time, hybrid vehicles using A123 lithium batteries can also
further reduce the gasoline demand of most car owners. The demand for gas fuel
can be reduced by 70%, while carbon emissions can be reduced by 50%. The impact
is minimized.
At present, A123 company mainly provides AMP20/AHP14 square battery,
APR18650/ANR26650 cylindrical battery (cell) and AMP20 power source module, 12V
starter battery/48V battery pack and so on.
A123 lithium iron phosphate battery characteristics:
Comparative analysis of several domestic BMS power battery modules
A123 lithium iron phosphate square battery AMP20
Power: High-energy products have a capacity density of 140W˙h/kg, an output
density of 3000W/kg, and can withstand high-power pulse discharge rates up to
100C (100 times the nominal capacity current discharge);
The capacity density of high-power products can reach 140W˙h/kg, and the
output density can reach 3000W/kg;
Medium power products have higher performance and efficiency
advantages;
Safety: It has been verified by multiple national laboratories and multiple
automotive customers, and has a superior tolerance for abuse.
Cycle life: A123's Nanophosphate technology provides excellent performance
and cycle life. In the low interest rate cycle, it can provide thousands of
cycles, even under the 10C discharge rate cycle, it also provides more than
1,000 complete cycles.
ANR26650——A123 lithium iron phosphate cylindrical battery
Comparative analysis of several domestic BMS power battery modules
ANR26650 batteries are suitable for high-end equipment, medical equipment,
model aircraft, military equipment, and other high-end equipment.
describe:
1.26650 capacity 2500 model ANR26650
2. Lithium iron phosphate power battery.
3. Discharge current: 70A
-Number of cycles: more than 1000 times (resistant to high temperature of
overcharge and overdischarge)
-Minimum capacity: 2400mAh
-Standard capacity: 2500mAh
- rated voltage: 3.3v
-Internal resistance: 6mΩ
-Weight: 76g
-Size: 26.25x65.00mm
Comparative analysis of several domestic BMS power battery modules
AMP20 power source battery module
