BATTERY MANAGEMENT SOLUTION

INDUSTRY SOLUTIONS

Lithium-Ion batteries are very popular due to their high energy density. It is, however, necessary to handle these Li-ion cells carefully due to their unstable behavior under critical conditions. That means a Battery Management System (BMS) is needed to monitor the battery state and ensure the operation safety. Based on connections empowered by the Jimi battery protection board, battery trackers and SaaS service platform, and by applying the battery management system (BMS), Jimi IoT offers One-Stop IoT Solution for Battery Management, helping enterprises monitor and regulate the charging and discharging of batteries, realize battery tracking, state monitoring and intelligent management with much ease.

INDUSTRY SOLUTIONS

CHALLENGES

Restricted Performance

The lithium-ion battery pack is composed of multiple cells that work together, but the overall performance of the pack is actually determined by the worst cell. In the long-term use of the battery pack, if one of the batteries has a failure, it will accelerate the decline of the entire battery system. That is to say, the key to promoting the development of power lithium batteries is battery pack technology and BMS technology.

Service Life

Each battery type has recommended charge and discharge current and voltage limits. Exceeding these parameters can lead to oxidation and short circuits, which can damage the battery and shorten its lifespan. For example, battery discharge below the specified threshold will result in battery failure. In the worst case, explosion, fire and electric leakage may occur. And all these illegal operations will lead to the decline of the battery pack.

Cell Safety

Although with high energy density, lithium-ion batteries are fragile. Lithium is a very reactive and flammable metal that burns instantly when it comes in contact with water and air. Even a slight increase in temperature or minor damage to the battery can cause thermal runaway and short circuits that can lead to explosions and fires. Even the overcharge and over-discharge will cause the lithium battery to burn and explode.

YES

CHALLENGES

Restricted Performance

Service Life

Cell Safety

YES

SOLUTION

PROTECTION BOARD Battery management system (BMS) is an electronic system that manages a rechargeable battery (cell or battery pack). The BMS-001 – Jimi IoT’s BMS protection board for lithium batteries, connects with a 13-to-16-string battery pack of various types, such as Lithium Manganese Oxide battery (LMO), Ternary Lithium Battery, Lithium Cobalt Oxide battery (LCO), and Lithium Iron Phosphate battery (LFP). It can handle a continuous discharge current of more than 60A, monitor such data as battery voltage, current, temperature, capacity, state of charge and others, and also support voltage balancing and protection. Furthermore, the BMS-001’s communications via the RS485 interface or 1-wire protocol and compatibility with GNSS and 4G modules will make it an ideal choice for controlling electric two- or three-wheelers, scooters, drones, or storing energy.

BATTERY TRACKER Featuring multiple positioning systems, Jimi battery trackers enable business owners to locate and track all batteries with ease and monitor the distribution of each cell in real time, reducing the incidence rate of battery theft and recovering the stolen batteries with great assistance. LTE communication with GSM (2G) fallback ensures a solid connection in almost all cases, and the advanced GPS antenna provides strong signal acquisition and more accurate positioning capability. Data analysis can be carried out through the device’s integration with a third-party platform, which helps enterprises manage, protect and optimize the performance of the batteries.

SOLUTION

BENEFITS

With advanced battery pack technology, the BMS-001 protection board provides 13-to-16 string battery pack support, enabling batteries to be used in a variety of products ranging from low-powered consumer electronics to high-powered electric vehicles. And through the voltage control of single cells, BMS-001 can ensure the optimal utilization of the remaining energy in the battery.

Battery Pack
Support

With voltage balancing, the BMS-001 compensates for the differences between individual cells and does some active or passive charge or discharge management to ensure the consistency of cells. During charging, the voltage of each cell will be balanced so that all cells in the pack have the same voltage, thereby improving the performance and efficiency of the battery pack.

Voltage Balancing
Support

Using high-accuracy NTC thermistors, the BMS-001 can detect the temperature of the cells and MOS driver in real time. The protection board also provides charge and discharge temperature protection, once the battery temperature exceeds the operating temperature range, it will automatically cut off the current path, preventing cells from thermal runaway.

Temperature
Control

Different systems have different requirements for communication interfaces. The BMS-001 protection board supports the transmission of battery data through the mainstream communication interface RS485 and 1-wire communication protocol, thus extending more battery pack usage scenarios.

Multiple
Communication Interfaces

1. Support using the 4G network to transmit battery data and locations; 2. Real-time battery tracking is supported by pairing the battery protection board with a GNSS module or Jimi tracker; 3. Provide Bluetooth support for transmitting battery parameters to the mobile app and configuring parameters. (These features are available on demand)

4G Network/GNSS/BLE
Communication Support

BENEFITS

HARDWARE

Based on connections empowered by the Jimi battery protection board, battery trackers and SaaS service platform, and by applying the battery management system (BMS), Jimi IoT offers One-Stop IoT Solution for Battery Management, helping enterprises monitor and regulate the charging and discharging of batteries, realize battery tracking, state monitoring and intelligent management with much ease.