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 IoT's 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 A Battery Management System (BMS) is an electronic system that manages rechargeable batteries, whether they’re single cells or battery packs. Jimi IoT offers three in-house battery protection boards designed for different types of lithium batteries such as LMO, Ternary, LCO, and LFP. These boards can connect to battery packs with 13 to 20 strings, handle over 60A continuous current, and monitor key data such as voltage, current, temperature, capacity, and SoC. They also support cell balancing, voltage protection, and offer communication options via RS485, UART, SIF, or 1-wire. In addition, the protection board includes or can be customized to include cellular and location tracking capabilities, making it ideal for managing shared batteries in swap stations, base station batteries, electric two or three-wheelers, scooters, drones, and more.

BATTERY TRACKER Jimi IoT’s battery trackers, with multiple positioning systems, empower business owners to easily locate all of their batteries and monitor battery distribution in real time, reducing battery theft incidents and enabling quick recovery of stolen batteries. These trackers utilize LTE communication (with GSM (2G) fallback) to ensure reliable connections in nearly all scenarios and feature an advanced GPS antenna for accurate positioning. Integration with third-party platforms facilitates data analysis to help companies manage, protect, and optimize battery performance.

SOLUTION

BENEFITS

With advanced battery pack technology, the BMS protection board provides 13-to-20 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, the battery protection board can ensure the optimal utilization of the remaining energy in the battery.

Battery Pack
Support

With voltage balancing, the battery protection board 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 battery protection board 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 battery protection board supports the transmission of battery data through RS485, UART, SIF, or 1-wire, 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 IoT's tracker; 3. Provide Bluetooth support for transmitting battery parameters to the mobile app and configuring parameters. (These features are available on demand)

4G/GNSS/BLE
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.