Find out how to choose the right battery management system for lithium ion batteries by analyzing key parameters like voltage, current, and BMS architecture.

1. Choose the
Right Battery
Management
System for
Lithium Ion
Batteries
https://www.bacancytechnology.com/

2. Quick Summary:
In this blog post, we will discuss how to
choose the right battery management
system for lithium ion batteries, focusing
on the key metrics like the voltage, current,
and BMS architecture.

3. Introduction

4. Lithium-ion batteries are the power source
for various gadgets around us. A report
from ResearchandMarkets highlights that
the global lithium-ion battery market was
valued at 41.1 billion USD in 2021. By 2030, it
is expected to reach 116.6 billion USD, with a
growth rate of 12.3% CAGR from 2021 to
2030. The top features of Lithium-ion
batteries are low self-discharge, high power,
and reduced cost, making them one of the
most suitable devices for energy storage.
Over the years, the demand for Li-ion
battery production has been increasing at a
rapid rate. The applications of Li-ion are not
just limited to the laptops and mobile
phones we use; it is the building block in
giving life to the heart of EV, i.e. Battery.

5. The performance of an electric vehicle relies
on the battery pack it runs on. With
multiple modules of cells constituting the
whole grid of a power source, it is important
to monitor every cell in the module. Each
cell has a different operational state due to
the difference in temperature, state of
charge, and state of health.
A battery management system for electric
vehicles is a sophisticated electronic circuit
that ensures maximum protection,
operational safety, and battery pack
longevity. This results in an overall reliable,
safe, and secured EV production, future-
proofing the EV ecosystem.
Let’s analyze the key parameters necessary
for selecting the right battery management
system for lithium ion batteries.

7. Select the Right
Battery
Management
System for
Lithium ion
Batteries

8. The selection of an accurate battery
management system for lithium ion
batteries depends on multiple factors such
as understanding the voltage, current
requirement, and topology.
1. Based on Voltage:
There are two types of classification based
on voltage for battery management
systems. They are low voltage and high
voltage.

9. a. Low voltage:
Low voltage battery management system
consists of voltage less than equal to 60V
DC. Two-wheeler & three-wheeler range
vehicles operate under a low voltage range.

10. b. High voltage:
High voltage battery management system
consists of a range less than equal to 900V
and voltage less than equal to 1500V.
Automotive vehicles mainly operate under
high voltage ranges, such as four-wheelers,
buses, and trucks. Other applications
include energy storage systems.

11. 2. Based on Topology:
There are many types of battery
management systems based on topology.
Depending upon the practical applications,
there are mainly two types of architecture –
centralized and decentralized battery
management systems.
The centralized battery management
system is the central controller unit
responsible for monitoring, balancing,
coordination, and cell control. The cell
monitoring circuitry is connected to the
intelligence circuitry in one single
assembly. This intelligence circuitry unit
facilitates internal communication with the
cell monitoring unit to acquire the various
data parameters and evaluate the battery’s
State of Charge (SoC) and State of Health
(SoH).

12. Secure your battery pack
today with Bacancy’s smart
BMS…!!
Our Battery Management
System supports LiFePo4
and Li-ion battery packs as
per your voltage
requirements.

13. The decentralized battery management
system has intelligence circuitry and cell
monitoring divided into multiple modules.
This model is implemented through
modular, master-slave, and distributed
topologies. It is interesting to note that as
the voltage requirement of the vehicle
increases, the complexities in handling,
communication, and control significantly
rise.
Adopting a decentralized battery
management system for lithium ion
batteries offers the following benefits:

14. Precision in Measurement: Shorter
wires cause lesser disturbance and
attenuations, having high
electromagnetic caliber.
Reliability in Connection: With a
decentralized architecture, the cell
monitoring circuit is in the vicinity of
the cells, proning it from mechanical
vibrations and shocks.
Increased Scalability: Cell stacking is
simple in a decentralized architecture
model. You can expand/reduce the
operations by increasing or decreasing
cell monitoring units.

15. You might want to read:
A Complete Guide on Components of
BMS

16. Bacancy’s smart
BMS for E-Bikes
and E-
Rickshaws

17. Our smart BMS technology optimizes the
life of the battery pack through continuous
monitoring and effective cell balancing by
determining the accurate state of charge
and state of health of the battery packs.
Bacancy’s smart BMS supports the current
range of 30/60/100 Amp as per the
operational requirement for two-wheeler
and three-wheeler applications such as
Ebikes & ERickshaws.

18. 1. Safety Protection
Bacancy’s smart BMS is mechanically able
to operate in a safety-regulated
environment. These assurances include
protection from heat accumulation and
overheating, preventing catastrophic
failures and fire accidents.
Continuous tracking and moderating the
voltage, current, and temperature
parameters regulate the battery operation
in a safe, controlled area. Also, the electric
vehicle is insured from battery damage
situations or battery failure. The device
displays alert notifications and fault
diagnoses.

19. 2. Thermal Resistance
The battery pack’s rugged and robust
mechanical design offers 100% protection
against thermal fluctuations, high impact
forces, mechanical shocks, and vibrations.
3. Cell Balancing
Cell balancing enabled with both active and
passive type cell balancing mechanisms
ensures efficient energy utilization within
the cells of a battery module. This increases
the product life cycle of the electric vehicle,
enhancing the concept of sustainable
mobility solutions.
ons, high impact forces, mechanical shocks,
and vibrations.

20. 4. Cloud Battery
Management System
(IONDASH)
The battery management system for
lithium ion batteries is the brain behind
communication between the EV and battery
pack and between the battery pack and
charger. This enables high-performance-
driven vehicles through efficient and timely
balanced information amongst all the
battery management system-enabled
electric vehicle units.
ibrations.

21. 5. Remote Tracking
Bacancy’s cloud-enabled battery
management system, IONDASH, is a
multipurpose platform for connecting
multiple devices at once. It tracks the
device’s state, whether it is charging,
discharging, or ideal. The location tracking
becomes easy for all the devices connected
with IONDASH and is visible on the home
page.

22. Final Thoughts

23. The battery management system for
lithium ion batteries is crucial for assuring
an EV battery pack’s safety, protection,
reliability, and longevity in sustaining
driving operations. With more
diversification in the EV models using
lithium-ion batteries, accurate selection of
BMS for electric vehicles becomes the need
of the hour.
So far you would have explored all the
important parameters necessary for making
an informed choice for your vehicle battery
pack. Bacancy’s smart BMS covers a diverse
product range from low to high voltages
upto 500 V. Bacancy’s renowned venture
Bacancy System is the leading product
development and embedded service
company. Tested under real conditions, our
16 cell BMS supports cell balancing at upto
130 mA of current. Get in touch with the top
BMS Manufacturers in India.

24. Thank You
https://www.bacancytechnology.com/