Product

We develop flexible batteries to accelerate the innovation of various wearable devices that improve human
health and contribute to greater accessibility of these devices so they can reach more people in need.

Flexible Battery

Flexible Lithium-ion
Polymer Battery
with High Capacity
LiBEST Flexible Battery is the most advanced flexible battery with high capacity and full-range flexibility. Ensuring safety on top of the flexibility, the battery boasts its design and performance that best serve the needs of wearable devices which have been confined to conventional solid cylindrical or rectangular casings.

Key Benefits

  • Flexibility

    With the flexibility that curves around any surface perfectly, LiBEST Flexible Battery can be applied to various wearable devices worn on the wrist, head, neck, waist, or other body parts.

  • High Capacity

    By achieving a higher areal capacity, the battery offers a 3 to 10 times larger capacity without causing any design change to the devices.

  • Durability

    The battery maintains its stable performance even after at least 5,000 cycles of bending with a radius of 15mm.

  • Custom Design

    The size of LiBEST Flexible Battery can be tailored to each customer’s needs.

LiBEST’s Advanced
Technologies

Applications

LiBEST will continue to expand the applications of the flexible battery. Beyond conventional IoT and wearable devices in the market, we will provide new form factors to support the development of new kinds of devices with new form factors and to accelerate the era of wearables.

Specifications

Category Detail
Type Rechargeable Lithium Battery
Dimension Customizable
Capacity Depends on size (Typically max 3,000mAh)
Operating Voltage Charge 4.40V/ Discharge 3.00V
Operating Temperature Charge 0°C ~ 45°C/ Discharge -20°C ~ 60°C
Nominal Voltage 3.85V

Product Line Up

NO. Battery Image Model Dimension (mm) Capacity
(mAh)
Standard Current (mA)
Width Length Thickness Charge Discharge
1 016052C05 16 52 1.95 55 26 26
017053C07 17 53 2.70 84 40 40
018054C09 18 54 3.45 115 54 54
2 014120C05 14 120 1.95 115 55 55
015121C07 15 121 2.70 172 84 84
016122C09 16 122 3.45 236 112 112
3 024069C05 24 69 1.95 138 65 65
025070C07 25 70 2.70 205 98 98
026071C09 26 71 3.45 280 133 133
4 030067C05 30 67 1.95 185 88 88
031068C07 31 68 2.70 276 125 125
032069C09 32 69 3.45 370 175 175
5 018154C05 18 154 1.95 213 101 101
019155C07 19 155 2.70 323 153 153
020156C09 20 156 3.45 425 202 202
Dimension (mm) Capacity
(mAh)
Standard Current (mA)
Width Length Thickness Charge Discharge
016052C05
16 52 1.95 55 26 26
017053C07
17 53 2.70 84 40 40
018054C09
18 54 3.45 115 54 54
014120C05
14 120 1.95 115 55 55
015121C07
15 121 2.70 172 84 84
016122C09
16 122 3.45 236 112 112
024069C05
24 69 1.95 138 65 65
025070C07
25 70 2.70 205 98 98
026071C09
26 71 3.45 280 133 133
030067C05
30 67 1.95 185 88 88
031068C07
31 68 2.70 276 125 125
032069C09
32 69 3.45 370 175 175
018154C05
18 154 1.95 213 101 101
019155C07
19 155 2.70 323 153 153
020156C09
20 156 3.45 425 202 202

Performance Test Results

  • Cycle Life
  • Charging rate Capability
  • Discharging rate capability
  • Bending Test - OCV decline
  • Bending Test – Capacity decline

Safety Test Results

We ensure the quality and safety of LiBEST Flexible Battery with the results of international safety tests including UN38.3 and UL1642 for bending, twisting, folding, rolling, cutting, and so on.