Name: 0.6mm Thickness Battery protection PCB
Brand: PCB Printed Circuit Board and PCBA manufacturing
Rating: 5 (1 reviews)

0.6mm Thickness Battery protection PCB

Product Model: Battery Protection PCB

Base Material: FR4

PCB Layers: 2 Layers

Solder Mask Color: Black

Finished Thickness: 0.6mm

Copper Thickness: 1oz

Surface Treatment: Immersion Gold

Min. Trace Width: 4mil (0.1mm)

Min. Line Spacing: 4mil (0.1mm)

Product Characteristic: Mini compact size

Application: Battery Protection PCB

Description
Data Sheet

A battery protection PCB is a dedicated integrated circuit board developed for the safety management of rechargeable lithium batteries. Special chemical characteristics of lithium battery materials determine strict operating limits; lithium cells cannot sustain overcharging, overdischarging, overcurrent, short-circuit, or ultra-high temperature charging and discharging. To avoid safety hazards and performance degradation, all commercial lithium battery packs are equipped with matched protection PCBs embedded with sampling resistors and current protection devices.

Battery protection PCB

A complete lithium battery assembly includes two core parts: lithium cell and protection PCB. The cell is composed of positive plates, separators, negative plates and electrolyte. Through winding or stacking, sealing, liquid injection and aging processes, independent battery cells are finalized. As the core safety control unit, the lithium battery protection board undertakes real-time monitoring of charging and discharging status, providing comprehensive safeguards against abnormal working conditions.

Lithium battery safety protection is jointly implemented by precision circuit systems and thermal protection components such as PTC and TCO. The protection circuit maintains stable operation in the temperature range of -40 ℃ to +85 ℃, continuously monitoring cell voltage and loop current. It can instantly switch on and off the current loop to isolate faults, while PTC and TCO effectively prevent irreversible battery damage under high-temperature environments.

Core Components of Protection PCB

The standard battery protection board consists of control IC, MOS switching tube, high-precision resistors, NTC, ID memory chip, and other auxiliary devices:

The control IC serves as the core logic unit, controlling the MOS switch to keep normally conducted for regular charge and discharge. Once voltage, current or temperature exceeds the rated range, it cuts off the loop within milliseconds to ensure battery safety.
NTC (Negative Temperature Coefficient Thermistor)
Resistance decreases with ambient temperature rise, enabling real-time temperature sensing. It cooperates with the control circuit to stop charge and discharge and prevent overheating failure.
ID Memory Chip
With a single-wire communication interface, it stores battery type, production date and identification information, supporting product traceability and customized application authorization.
PTC (Positive Temperature Coefficient Component)
A key passive safety part for battery packs, which limits abnormal high current and suppresses high-temperature risks. PTC specifications are customized according to battery voltage, current density and application environments to improve overall structural reliability.

Design Difficulty of Protection Boards

Single-cell lithium battery protection PCB adopts a simple and mature design scheme. For power batteries with high discharge voltage platform requirements, the design standard is stricter: high-stability control ICs and high-precision, low-temperature-coefficient, non-inductive JEPSUN sampling resistors are required to avoid voltage attenuation during discharge.

Multi-cell series battery protection boards involve higher technical barriers. Targeted design and hierarchical configuration are adopted according to different voltage levels, capacity specifications and application demands to balance performance, cost and safety.

Core Protection Functions

Overcharge Protection
Overdischarge Protection
Overcurrent & Short-Circuit Protection

Maxipcb provides customized high-quality PCB boards for lithium battery protection modules, with stable impedance control, high-density routing and automotive-grade reliability, meeting mass production demands of consumer lithium batteries, power batteries and energy storage battery packs.

Model : Battery Protection PCB

Material : FR4

Layer : 2Layers

Color : Black

Finished Thickness : 0.6mm

Copper Thickness : 1OZ

Surface Treatment : Immersion Gold

Min Trace : 4mil(0.1mm)

Min Space : 4mil(0.1mm)

characteristic : small pcb

Application : battery protection PCB

0.6mm Thickness Battery protection PCB

Description

Data Sheet

Core Components of Protection PCB

Design Difficulty of Protection Boards

Core Protection Functions