Brilliantly simple. Simply brilliant.

Automated Equipments are used to simplify manufacturing.This makes the most advanced battery technology more reliable.

Stability was the first thought. Not an afterthought.

The resistance of the PTC/PPTC increases as temperature increases due to increased flow. The resistance will “reset” automatically when the fault is removed and temperature returns to a safe levels.

PTC

We chooses the best PPTC to achieve the most reliable battery performance.

Ultra Low resistance–for extended battery run time. A narrow low profile design.
Very fast trigger time. Double weldable bands Nickel terminal. RoHS compliant and lead–free

Flat phone

No Detail's Too Small

Automated cylinder li ion battery winding precision
Separator alignment error±0.2 mm
Electrode alignment error±0.2 mm
Height error of core less than 0.2 mm

The battery inner cell winding is to wind the cathode film, anode film and the separator into a cylinder.

Although the separator can withstand the tension, the inner cell winding operation should be precisely processed. During battery assembly, the mechanical strength is typically defined in terms of the tensile strength in both the machine (winding) direction and the transverse direction, in terms of tear resistance and puncture strength. Strengths more than needed can result in a thicker separators(battery damage). The Lack of strength will cause the battery cell quality issue(small puddlability, less capacity).

Protect the li ion battery even in the extreme conditions.

Normal stage

The positive cap has the vent structure integrated to triple secure the safety. Do not like the outer safety measures from the outside the main shell, the vent structure comes more invisible yet important. We uses the well-designed and proved-to-be-reliable vent structure.

PTC
PTC

Inner gas increasing

When internal gas increases, vent plate will be pushed up. Thus the welding parts will be torn. It will result in a current shutdown with no gas release and leakage.

Gas release

When the internal gas exceeds a fixed figure, the notch parts will be broken. Internal pressure will be eliminated without explosion.

PTC

The powerful separator

Good separators allow high energy and power flow, and have high melt strength to avoid safety issue. So it’s one of the critical determinants of the batteries safety.

P


P

Trilayer PP Separator

P


P

Trilayer PE Separator

M


M

Monolayer PP Membrane

What’s the difference?

The separator is a film-like material, made of electrically insulating polymer polyolefins that prevent electrons from flowing directly from anode to cathode, but allowing them to flow out to the device (LED torch, UPS, electric motor etc). Separators have to be porous to allow lithium ions to pass through. The more porous they are, the more energy can travel. Good separators allow high energy and power flow, and have high melt strength to avoid safety issue. So it’s one of the critical determinants of the batteries safety.

PTC

Scanning electron microscope images

Our monolayer polypropylene (top) and trilayer PP/PE (polypropylene/polyethylene) separator films for lithium ion batteries. The top one is monolayer high efficient separator we use. The bottom one is multilayer low efficient separator. Monolayer PP separators are much more capable and even well-suited for electric drive vehicle (EDV) applications because they offer increased rate capabilities and are stable across a wide thermal range. For safety, the layer can also close the pores if temperatures exceed 140 Degrees Celsius, effectively shutting down the current flow.

Monolayer PP Features

Produced using a dry-stretch manufacturing process

Excellent resistance to acids, bases, and most chemicals

Uniform pore structure with high chemical and thermal stability

Well-suited for a variety of barrier-type uses

Oxidation resistance for excellent cycling & trickle charge performance

Zero TD shrinkage reduces internal shorting and improves high temperature dimensional stability