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Welcome to EWI Distribution Inc.

Here are some shots of the EWID Lithium Iron Phosphate Batteries.

 


Picture 1
EWID Lithium Phosphate Battery

Through exciting innovation and research, we have been able to
develop the most advanced battery source: EWID Lithium Iron
Phosphate batteries.

The latest in Lithium Chemistry has brought affordability and flexibility
to standard and emerging applications.

After developing the latest process for treatment of the lithium
cathodes with non-toxic enhancers, conductivity has been increased
over 10 million times, providing a safe, efficient rapid charge power
source that is available in standard and custom dimensions.

EWID batteries enjoy a flexibility of design that allows for custom
battery packs, tailored to meet the design requirements of industry
professionals and providing freedom from typical battery size
restrictions.

Due to the vulnerability of fossil fuels and environmental concerns,
the alterative energy fields and related industries are rapidly growing
at strong rates.

In response renewable energy has attracted more and more attention.
This has caused a strong demand of smart, affordable rechargeable
batteries.

However, the existing lithium iron cell systems, including lithium cobalt
oxide and lithium manganese oxide still suffer from low discharge
rates, safety concerns, and short cycle life.

To solve those issues, a new battery technology, Lithium Iron
Phosphate, has been successfully developed using state of the art
technology to prepare lithium in the proper environment EWID
Lithium batteries provide a rechargeable, clean, fast and efficient
power source that out-performs all others for practical & economical
use.

Finally a real life solution is available for energy demands!

EWID lithium batteries come in many varied sizes including: 3.0V
single cells with capacities from 5AH, to 60AH capacities.

Our New EWID 100AH will be available in to dealers only and can be
ordered NOW!
We also can work with the client to provide specific
modules in accordance with the application’s needs.

Picture 2
Picture 3

Picture 4

EWID Lithium Iron Phosphate Batteries installed
and being tested in ZAP Xebra PK

EWID Lithium Phosphate Batteries


Specifcations

High Performance:
Provides a High Theoretical capacity of l70mah/g and a High
Practical capacity as high as 165mah/g.

Extremely Safe/Stable Chemistry
High intrinsic safety, non-explosive & will not catch fire under
collision, due to overcharging, or from a short circuit.
High thermal stability of phases up to 500C.

High Discharge Rate Capability
Among the best for all high power output demands

Extraordinary Long Cycle Life: 5-7 years
Achieves up to 2000 cycles per life-over 7 times the life of
Lead Acid and 3 times of NIMH and 3-4 times of LI-IRON,
LI-MN battery.

Long Service Life
Over 6-7 years-up to 2000 cycles (80% DOD)

Rapid Charging Ability
2C fast charge 85% within half hour

No memory effect     
Nickel Batteries exhibit memory problems

Environmentally Friendly
Non-toxic, Non-contaminating-no rare metals, UL, CE,
SGS/ROHS approved.
Easy to dispose of.... No Heavy Metals

Wide working temperature range
From -45°C to +70°C (Extremely cold and extremely hot
weather will
not affect its performance)

Flexible Form Factor
Small in size and light in weight, 1/3 weight of Lead Acid
and 65% weight of NIMH. 2/3 size of Lead Acid.
1/3 the weight with twice the run-time


Comparative Chart

COMPARISON CHART AND DATA
AMONG VARIOUS LITHIUM BASE BATTERIES

Features
C-LiFePO4 LiCoO2 LiMn2O4

NIMH

SAFETY AND

ENVIRONMENTAL

CONCERNS

Safest: no
explosion, no
smoke, no fire
under abused
working condition
and the most
environmentally
friendly.

Non-toxic, no
rare metal, fire
resistant, easily
disposed of

Not stable
- very
dangerous

Acceptable
but also be
explosive
and on fire
under
abused
working
condition

Not stable
will be on
fire even
just under
high
temperature

CYCLE LIFE

Best among all
the listed
groups-Up to
2000 times
(80% DOD)
condition)

Acceptable
(<500
times)

Unacceptable
(around 300
times)

Below 500
times

POWER WEIGHT
DENSITY

Acceptable 65%
weight of NiMH

Best

Acceptable

Low

LONG TERM
COST

Most Economical

High

Acceptable

High

THERMAL
PERFORMANCE

Excellent
(-45°C to
+70°C)

Decays
beyond
55°C to
-20°C

Decays
extremely
fast over
50°C

Decays
faster
in high
temperature

REMARKS

  1. Lead Acid: though lower in cost and safety
    acceptable; it is extremely toxic, the worst for
    the environment, short cycle life, heavy in
    weight, not the best choice for many reasons.
  2. Nickel Hydride: exhibits low Power Weight
    Density, decays faster in high temperature,
    memory effect not suitable for high output
    usage.
  3. The C-coated Lithium Iron Phosphate Battery:
    has been proven as the most environmental
    friendly battery. It is the safest with longest life
    cycle and most suitable for high output usage.
    It is also the best for storage and back-up
    applications.

 

 

 

 

 

 

 

 

 

 

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Site Updated 10-6-2007