secondary battery
Ultrathin Li-Po Batteries
Reliable, compact, and energy-dense power sources designed for high-performance applications where space and efficiency matter most.
Premium Quality
Engineered with advanced battery technology and strict quality standards for reliable, long-lasting performance
Battery Support
Expert engineering and technical support from concept and prototyping to manufacturing and integration
Custom Solutions
Capacity, size, and labeling fully customizable. OEM branding and custom spec engineering available.
Global Battery Manufacturing
Worldwide battery manufacturing capabilities with facilities and support networks across the USA and Asia
PHD Ultrathin Li-Po battery utilizes the traditional pouch type battery manufacturing process and chemistry to ensure the low cost and high manufacturability. The unique design and process control guarantee the uniformity in thickness and cosmetics. This battery is also highly customizable to meet your requirements on different sizes, power consumption and assembly process.
Premium Ultrathin Batteries
rechargeable Li-po 3.7V Chemistries
Highlited Features
For both non-rechargeable Li-MnO2 3.0V chemistry and rechargeable Li-po 3.7V chemistry
As thin as 0.5mm with uniform thickness
Good solderability for the nickel tabs
Mature manufacturing with high efficiency and yield
Product List: Rechargeable
Designed for OEM integration and custom applications, our ultra-thin batteries offer high energy density, stable discharge performance, and long cycle life, making them ideal for devices that require repeated charging and consistent power delivery. Their flexible pouch-cell construction enables seamless integration into flat, curved, or space-constrained designs where traditional battery formats are not viable .
At PHD Energy, we provide fully customizable ultra-thin battery solutions: including size, thickness, capacity, connectors, and protection circuitry. Supported by global manufacturing and U.S.-based engineering expertise.
| No. | Model | Nominal Voltage | Nominal Capacity | Max. Discharge Current | Dimension | ||
|---|---|---|---|---|---|---|---|
| T(mm) | W(mm) | H(mm) | |||||
| 1 | PHD-044030 | 3.7V | 20mAh | 25mA | 0.45 | 40 | 30 |
| 2 | PHD-044040 | 3.7V | 25mAh | 25mA | 0.45 | 41.5 | 41.5 |
| 3 | PHD-052323 | 3.7V | 12mAh | 12mAh | 0.68 | 24.5 | 24.5 |
| 4 | PHD-053527 | 3.7V | 12mAh | 12mAh | 0.45 | 35 | 26.5 |
| 5 | PHD-053535 | 3.7V | 22mAh | 22mAh | 0.52 | 35 | 35.5 |
| 6 | PHD-102323 | 3.7V | 17mAh | 85mA | 01.01 | 23 | 24 |
| No. | Model | Nominal Voltage | Nominal Capacity | Max. Discharge Current | Dimension | |||
|---|---|---|---|---|---|---|---|---|
| Continuous | Pulse | T(mm) | W(mm) | H(mm) | ||||
| 1 | PHD-CP042345 | 3V | 35mAh | 2mA | 4mA | 0.45 | 23 | 45 |
| 2 | PHD-CP042922 | 3V | 15mAh | 1mA | 2mA | 0.45 | 29 | 23 |
| 3 | PHD-CP044040 | 3V | 50mAh | 5mA | 10mA | 0.45 | 40 | 40 |
| 4 | PHD-CP052039 | 3V | 25mAh | 2mA | 4mA | 0.5 | 20 | 39 |
| 5 | PHD-CP054248 | 3V | 100mAh | 20mA | 40mA | 0.5 | 48.5 | 48.5 |
| 6 | PHD-CP064248 | 3V | 200mAh | 20mA | 50mA | 0.6 | 48.5 | 48.5 |
| 7 | PHD-CP082922 | 3V | 50mAh | 20mA | 80mA | 0.8 | 29 | 22 |
| 8 | PHD-CP084248 | 3V | 320mAh | 20mA | 50mA | 0.8 | 48.5 | 48.5 |
Applications
Ultra-thin rechargeable batteries are essential for powering modern electronics that demand minimal thickness without compromising performance. Their slim, lightweight, and flexible design enables integration into compact and innovative devices across consumer, medical, and industrial markets.
These batteries support applications where traditional cylindrical or prismatic cells cannot fit, enabling new product designs in wearables, smart devices, and embedded systems. Their ability to deliver stable power in limited spaces makes them a key enabler of miniaturization and advanced product development
Medical devices
IoT sensors & smart tags
Wireless communication devices & tracking systems
Portable consumer electronics & handheld devices
Smart labels & electronic identification systems
Industrial monitoring sensors & remote data devices
Submit your RFQ
What Happens Next
Submit your requirements and a PHD Energy engineer will contact you within 1 business day.
Share application, specs, volume, and timeline.
Our team evaluates your needs and prepares a tailored recommendation.
Get a detailed proposal including design options, pricing, and lead times.
We build, test, and refine until your solution is field-ready.