A Pouch Li Polymer Prismatic Battery is a lithium polymer battery housed in a rectangular prismatic form factor with a soft, laminated foil pouch instead of a rigid metal shell. The term "prismatic" refers to the rectangular shape, while "pouch" indicates the flexible outer packaging. Inside the pouch, the positive electrode, separator, and negative electrode are stacked or wound in layers, then sealed with a polymer or gel electrolyte. This design reduces weight, increases design flexibility, and allows manufacturers to produce batteries with very thin profiles—often as thin as 1 mm to 2 mm for ultra-slim devices.
Yideng's pouch Li polymer prismatic batteries are known for their high volumetric energy density, low internal resistance, and excellent thermal behavior under normal operating conditions. The flexible packaging also allows for custom dimensions, making it easier to integrate the battery into compact enclosures without wasting space on rigid casings.
Yideng designs every Battery with multiple layers of safety protection. The aluminum laminate film is engineered to vent safely in an extreme thermal event, preventing explosive failure. The separator material has high thermal stability and is coated with ceramic particles to resist shrinkage at elevated temperatures.
Yideng Pouch Li Polymer Prismatic Battery cells and packs comply with major international safety standards, including:
The Pouch Li Polymer Prismatic Battery from Yideng serves a broad spectrum of industries. Its customizable dimensions and high energy density make it suitable for both low-power and high-power applications. Common uses include:
Q: Can I fast-charge a Pouch Li Polymer Prismatic Battery?
A: Yes, but within specified limits. Yideng standard cells support 0.5C to 1C fast charging depending on the model. High-rate series cells can accept up to 1.5C charging current. Fast charging generates more internal heat, so the cell temperature must be monitored and kept below 45°C during the charge cycle.
Q: How should I integrate a Battery into a device without damaging it?
A: The flexible pouch is durable but can be punctured or bent excessively if mishandled. Yideng recommends leaving at least 0.5 mm of clearance around the battery for thermal expansion. Avoid placing the battery near sharp edges, heat sources, or metallic components that could create a short circuit. Use insulated tabs or connectors, and do not fold or crease the pouch.
Q: What causes swelling in a Pouch Li Polymer Prismatic Battery and how can it be prevented?
A: Swelling is caused by gas generation inside the cell, which can occur from overcharge, over-discharge, operation at high temperature, or internal short circuit.
Q: What is the minimum order quantity for custom Battery designs?
A: For standard cells listed in the Yideng catalog, the minimum order quantity is typically 500 units per model. For custom dimensions, the MOQ depends on the required cell size, electrode design, and tooling costs. Small custom projects with dimensions close to an existing standard model may start at 2,000 units. Fully unique designs often require 5,000 to 10,000 units to cover NRE costs and production line setup.
Yideng has built a reputation for reliable lithium polymer cell manufacturing through strict process control, in-house R&D, and consistent batch-to-batch performance. The company operates automated production lines in certified facilities, with each cell traceable from raw material lot to final test data. By choosing Yideng, product developers gain access to a wide range of standard cells, rapid prototype support, and competitive pricing for volume orders. The engineering team works directly with customers to optimize battery selection, PCM design, and pack integration for longer product life and fewer field failures.
