Recycled Lithium Ion Cells Powerwall for Homes
This Project is based on recycling the lithium ion cell or battery that means to use existing cell which already in use and make Powerwall for homes. The normal capacity of one new cell is usually up to 4.2 volt but in used it becomes less up to 3 volt due to charging and discharging.
2025-06-28 16:34:46 - Adil Khan
Recycled Lithium Ion Cells Powerwall for Homes
Project Area of Specialization Internet of ThingsProject SummaryThis Project is based on recycling the lithium ion cell or battery that means to use existing cell which already in use and make Powerwall for homes. The normal capacity of one new cell is usually up to 4.2 volt but in used it becomes less up to 3 volt due to charging and discharging. If recharged that cell it can recover its capacity and become 3-3.5 volt which is capable for further used. Through recycling we have made Powerwall in the form of battery packs from li-ion cell that consist multiple cells.
Through Arduino we have programmed each cell which can be replace easily.The cell provide DC voltage source in this project we use Inverter. Electronic inverters will be used to produce smoothly varying AC output from a DC input from battery packs because the current store in battery pack in Direct Current.
In this project we use Solar panel. Photovoltaic solar panels absorb sunlight as a source of energy to generate electricity. A photovoltaic (PV) module is a packaged, connected assembly of typically 6x10 photovoltaic solar cells. Photovoltaic modules constitute the photovoltaic array of a photovoltaic system that generates and supplies solar electricity in commercial and residential applications.
The Powerwall which will be in the form of battery pack made from lithium ion cell will charged from sun through solar panel during day time and will be charged from grid electricity during night time. The maximum capacity of Powerwall will be 1kwhr (one kilowatt-hour).
Project ObjectivesThe Li-ions Powerwall battery provides the user with the option to control how and when the energy is used by storing energy from the photovoltaic (PV) system and/or from the grid to then be used when the electricity is more expensive. This option helps save money on the electricity bills and cut down on the PV system payback times. Since the Powerwall battery is perceived as being a cheap energy storage solution and energy usage can be controlled.
The most important that this project is differ from other batteries because in this project we can easliy replace the cell without disturbing the whole project operation. it is cost effective if any cell is damaged the LEDs we are using in this project will show the indication about cell capacity and visualize any issue occures in the powerwall because each cell is programmed in the form of packs in the powerwall through Arduino.
While replacing is not possible in other batteries any small issue is came in that batteries it is very difficult to visualize and solved it by local person.
Project Implementation MethodThis project is Based on Lithium ion cell recycing process so we have design a powerwall in the form of battery packs in which we have programmed each cell and two LEDs (i.e Green and Red) Green is for good indication while Red is used to indicate Dead condition of cell which are connected with each pack maximum three cell are there in each pack each cell has a voltage rating of 4.2 volt these cell are connected in Series and Parallel connection to get the required power source. we are also used LCDs(20x4) to show the capacity of each pack and also overall Capacity of the powerwall in terms of Percentage which is programmed through Arduino.Through this implementation we can easily visualize each cell or pack capacity. this replacing is not possible in other Batteries like Lead acid Batteries it consist a complete module. this powerwall in the form of batterypacks are connected with inverter(UPS) . Two relays are fixed in front of UPS circuit that is programmed and will allow only one source at a time i.e Grid Electriciy or Solar Energy obtaining from Solar Panel. In day time it will take Electrical energy fron Solar panel and charge the powerwall while in night time it will charge the powerwall from Grid Electricity in night time.
Benefits of the ProjectThe benefits of our Project is:
- Cost Effective
- Easy maintenace
- Easily Cells can be replaced without disturbing the project operation
- Lighter and Quick Charging
- High capacity
- Low internal Resistance
Application of the Project is:
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Self-Powered Home
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Backup Power
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High power in a small Package
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Reliable and Clean energy Source
This project is design to be cost effective to get High power source from small cells. design each cell in series and in paralled combination to get high power source and these cell programmed because we can visualize each cell capactiy and easily replace the cell.
the componest we are used and its capactiy are:
- 18650 Li-ion cells each cell has 4.2V and current rating of 1.5A total in numbers are 210 and its capacity is about 1000 Watt.
- Inverter (Convert from DC to AC) 1500 watt in case of extending powerwall capacity.
- Solar panel 300Watt
- Microcontroller/Arduino mega 2560 because maximum i/o pins capacity is required.
- Connecting Wires
- Relays two programmed through Arduino/Microntroller
- LCDs(20x4) to show the powerwall capacity in terms of Percentage.
| Item Name | Type | No. of Units | Per Unit Cost (in Rs) | Total (in Rs) |
|---|---|---|---|---|
| Total in (Rs) | 42650 | |||
| Solar Panel | Equipment | 1 | 12000 | 12000 |
| UPS Circuit | Equipment | 1 | 10000 | 10000 |
| Lithium ion Cells | Equipment | 250 | 50 | 12500 |
| Relay Module | Equipment | 2 | 600 | 1200 |
| LEDs | Equipment | 150 | 10 | 1500 |
| Arduino/Micronontroller | Equipment | 1 | 1200 | 1200 |
| LCD (20x4) | Equipment | 1 | 500 | 500 |
| Battery Packs | Equipment | 75 | 50 | 3750 |