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1. The 40% Multi-Color Solar Celland Soldier Portable Solar Battery Chargers Lewis Fraas
JX Crystals inc
ARL Portable Power
Dec. 2010
2. Outline History of MJ Cells
Proposed Soldier Portable Solar Battery Charger
Proposed Schedule
Progress & Status
Discussion and Conclusions
6. Over 30% commercial multi-color concentrator solar cells with
8. A concept for a compact solar battery charger. (a) Shows 12 W Charger in folded 4”x8”x1” case. (b) The case is opened showing the folded lenses.
9. Deployed Solar Battery Charger
11. The JXC Engineering Team Lewis Fraas – PI; Design and reporting
James Avery – Cell supply, testing, & assist in reporting
Leonid Minkin – Plastic Lens and frame design and procurement
Han Xiang Huang – Circuit design and fabrication; Tracker design and fabrication
16. Deployed 36 W battery charger.
17. Solar Charger 36 W Circuit Board Design
19. Status 36 W Solar Charger
21. 75 W unit viewed from north facing south showing tracking in early morning (left), at noon (middle), and in late afternoon (right) as low power clock motor turns drive screw.
25. Conclusions We have a 2 year ARRA contract to design and fabricate small, medium, and larger portable TJ-LCPV solar battery chargers.
We are procuring Fresnel lenses and cells for this project. from 3M and Boeing and JXC is designing and fabricating these solar battery chargers and delivering prototypes to ARL.
JXC has fabricated four small TJ-LCPV chargers and delivered two units to ARL.
The design of the medium sized charger is complete and the first unit has been delivered to ARL.
Delivery of tracking 36 W and 75 W TJ-LCPV chargers is scheduled for 2011.