pv backsheets from hanita coatings

PV Backsheetsfrom

Hanita CoatingsAvi Amar – Hanita Coatings

Energy Efficiency Division 2012

Why should you choose Hanita?

Hanita Coatings offers 30 years’ expertise developing engineered polymeric films

Why Han ita Backsheets : KPE CPE KAPE Back-Contact Custom

Established – 1982HQ, R&D and manufacturing in Western Galilee, Israel Ownership –• 75% Kibbutz Hanita• 25% Tene Investments

180 staff, 7 overseas sales offices

Hanita’s global reach ensures short lead-times and outstanding local service


State-of-the art coating and laminating facilities provide innovative technological solutions

Four coating lines 1.6-2.1m wide, 0.7m pilot production line, clean room – Class 100,000


Technology break-throughs in the field of metallizing enable us to provide world-leading levels of barrier

Two vacuum roll coaters, 2.1m, 2.3m wide, proprietary deposition of Al, Cu, and other metals, alloys and oxides


Recent CAPEX investments of $15m provide the cutting edge of technology

Six slitter-rewinders with width capacity from 5mm – 2100mm, Clean room – Class 10,000


We offer a unique range of capabilities and processes under one roof

Deposition & Metallizing Technology Coating & Laminating Technology

Optical Density 0.2-5 Enhanced Metal Adhesion

Reactive Depositions Clear Barrier

Print PrimersAdhesivesBarrier CoatingsAbrasion Resistant CoatingsNano CoatingsUltra Violet Reduction Atmospheric Plasma

Technology

Engineered Films

R&D

Energy Efficiency Solutions Industrial & GraphicsMarkets


With all production in one site, we can guarantee total quality control


A fully equipped testing lab ensures all products are rigorously tested for durability & performance


All backsheets we develop are rigorously tested as complete modules by external laboratory

Lamination testing • Inner layer • Encapsulant adhesion

Damp heat test @• 1000 hours• 2000 hours• 3000 hours

Thermal cycling testing 200 cycles

Dry/Wet Hi Pot insulation test

Before and after exposure tests


Our products combine the finest raw materials from leading manufactures

Selected to provide the required electrical insulation and mechanical strength.

Ultra-white patent pending EVA layer gives high VIS light reflectance (higher output power from the module) + good adhesion to EVA encapsulant.

Arkema Kynar® films give outstanding protection from weathering

EVA Films

PET Films

Fluoro-polymeric Films

In-house coating development cost effectively provides the weatherability levels of FP films

Fluoro-polymericcoatings


Hanita Coatings’ strengths ensure we can challenge the market leaders

• Advanced film converting facility

• Deep specializationin durable coatings

• 12% workforce R&D dedicated

• ISO 9001:2008• Fully equipped

Test lab

• Distribution centers worldwide

R&D - Custom Development

Global Reach30 years’

expertise


Why choose DuraShield backsheet products?

Look what can happen if you use the wrong backsheet…

Corrosion in connections caused by cracks in backsheet

Delamination of BS after 3 yearsexposure in Germany


All DuraShield backsheets provide high physical protection, electrical insulation & the right appearance

Electrical insulation

Moisture protection Right appearance

Increased efficiency in some applications

Physical protection

Enabling a 25 year outdoor

PV module lifespan


Hanita produces four types of backsheets (BS) for the leading PV technologies

DuraShield KPE Fluoropolymer laminate BS, for c-Si modules

DuraShield CPE High durability FP coated laminate BS, for c-Si modules

Electrical circuit backsheet for Back Contact (EWT/MWT) technologies

DuraShield KAPE

Low weight, high barrier BS solution for Thin Film technologies

DuraShield Back

Contact


DuraShield KPE’s classic FP film construction delivers enhanced long-term performance for c-Si modules

K = Kynar® PVDF Fluoropolymeric filmP = Polyester filmE = EVA

DuraShield KPE

Why Hanita Backsheets : KPE CPE KAPE Back-Contact Custom

DuraShield KPE is a proven technology targeting traditional module manufacturers

Economical alternative to PVF constructions

Exceptionally white EVA layer

Long term weatherability retains bright whiteness and reflectivity

Cost Effective

Enhanced Reflectivity

Excellent Durability


DuraShield KPE is TUV certified for >1000VDC and UL IEC 61730-2:2004


Maximum permissible 1053 VDCSystem voltage

2000 hours damp heat

2000 hours

DuraShield KPE easily withstands


testing

DuraShield CPE replaces the Kynar FP film laminatewith an equally durable Fluoropolymeric coating

Cost Effective

DuraShield CPE

C = Coating of FluoropolymerP = Polyester filmE = EVA


The DuraShield CPE solution delivers a price advantage without compromising performance

Provides electrical insulation and mechanical strength. Protected by Fluoropolymer layer.

Patent pending ultra-white EVA layer gives high VIS light reflectance (higher output power from the module) + good adhesion to EVA encapsulant.

Gives protection from weathering, cost effectively.

EVA PETFluoropolymer

Coating


DuraShield KPE gained TUV & UL approval. So did the competitors. Look what happened after 2000 hours…

∆E = 4.4 ∆E = 2.0 Competitor Backsheet DuraShield KPE

Market leading competitor’s backsheet yellows drastically after aging test of 2000 hours of damp heat. DuraShield KPE is more reflective and more effective than the competitor’s leading product.


DuraShield KPE and CPE show outstanding long term EVA encapsulant peel strength

0hrs 1000hrs 2000hrs 3000hrs0

20

40

60

80

100

120

KPK KPE FPE CPE PPEDamp Heat hours

N/c

m


DuraShield CPE

DuraShield KPE

– FP coating

– PET based

– FP film x2

– DuraShield CPE

– DuraShield KPE

Damp Heat Test

Damp heat: 85 OC 85% RH

DuraShield’s ultra-white EVA shows exceptional initial cell-side reflectance

DuraShield KPE visible light reflectance (550nm): 84.4%

DuraShield CPE visible light reflectance (550nm): 84.1%

75

76

77

78

79

80

81

82

83

84

85

400 450 500 550 600 650 700 750 800

%R

Wavelength (nm)FPE PPE KPE KPK CPE

DuraShield CPE

DuraShield KPE


– FP coating

– PET based

– FP film x2

– DuraShield CPE

– DuraShield KPE

012345678

1000hrs 2000hrs 3000hrs

Delta

E

QUV hours

UV exposure up to 3000 hours shows exceptional performance by DuraShield KPE & CPE @ cell side

DuraShield CPE

DuraShield KPE

Test cycle: 20h UV-A (0.93W/sq.m,@340nm) + 75°C ; 4h dark + 50°C + condensation

– FP coating

– PET based

– FP film x2

– DuraShield CPE

– DuraShield KPE

DuraShield KPE and CPE both demonstrate excellent color stability – ΔE vs. QUV hours @ back side

Test cycle: 20h UV-A (0.93W/sq.m,@340nm) + 75°C ; 4h dark + 50°C + condensationAccording to relevant data, 1 year in Florida direct sunshine is ~956 hours in these test conditions. Backside not directly exposed to sunlight, it will typically see ~15-20% from direct light. Taking this factor into account, ~5000 hours safely simulate 25 years

0.00

0.50

1.00

1.50

2.00

2.50

1000hrs 2000hrs 3000hrs

ΔE

QUV (hrs)KPK KPE FPE CPE PPE

DuraShield CPE

DuraShield KPE


– FP coating

– PET based

– FP film x2

– DuraShield CPE

– DuraShield KPE

DuraShield KPE and CPE retain their initial levels of gloss (60°) for 3000 hours virtually without change

0

20

40

60

80

100

120

0 500 1000 1500 2000 2500 3000 3500QUV Hours

Gloss Retention (60° Gloss)

KPK KPE FPE PPE CPE

Test cycle: 20h UV-A (0.93W/sq.m,@340nm) + 75°C ; 4h dark + 50°C + condensation

DuraShield CPE

– FP coating

– PET based

– FP film x2

– DuraShield CPE

– DuraShield KPE

DuraShield KPE

Hanita has developed backsheets for alternative & promising PV technologies

DuraShield Back Contact


Electrical circuit BS for Back Contact/MWT technology DuraShield

KAPELow weight, high barrier BS solution for Thin Film technologies

Electrical circuit BS for Back Contact (EWT/MWT) technologies


DuraShield KAPE delivers the high moisture and oxygen barrier demanded by thin film modules

DuraShield KAPE

K = Kynar® black PVDF Fluoropolymeric filmA = Aluminum P = Polyester filmE = Black EVA


DuraShield KAPE is TUV certified for >1000VDC

Maximum permissible 1092 VDCsystem voltage


Back Contact breakthrough technology improves cell module power output distribution

Back contact technology provides• Higher output power• Lower manufacturing costs• No stringing/bus-bars• Attractive appearance

DuraShield Back Contact foil innovation enables greater efficiency at reduced cost



DuraShield Back Contact foil innovation enables greater efficiency at reduced cost



Patent pending technology replaces expensive 36µ copper foil with Aluminum conductive layer

Innovation

Compatible with all existing conductive adhesives and solder pastes

Compatibility

Achieves the optimal fill factor by using highly conductive layers

Performance

Our specialty is customized backsheet development, providing the solution to your specific product challenge


Goal: Improve weatherability

Solution: Engineering

EVA to enhance UV resistance

Problem: LCPV low concentrated PV modules suffer accelerated module degradation Goal: improve affinity

to BS

Solution: Engineering of BS

surface by primer or co-ex development, or by replacing EVA

with alternative film.

Problem: unconventional encapsulant material

So how can Hanita help you solve your product challenge?

• Advanced film converting facility

• Deep specializationin durable coatings

• 12% workforce R&D dedicated

• ISO 9001:2008• Fully equipped

Test lab

• Distribution centers worldwide

R&D - Custom Development

Global Reach30 years’

expertise


Thank [email protected]

pv backsheets from hanita coatings

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