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Rechargeability of alkaline Zn-MnO2 ...

Ingale, Nilesh D.

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Rechargeability of alkaline Zn-MnO2 batteries: Experimental and mathematical studies.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Rechargeability of alkaline Zn-MnO2 batteries: Experimental and mathematical studies./
Author:	Ingale, Nilesh D.
Description:	139 p.
Notes:	Source: Dissertation Abstracts International, Volume: 76-05(E), Section: B.
Contained By:	Dissertation Abstracts International76-05B(E).
Subject:	Engineering, Chemical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3671912
ISBN:	9781321491371

Rechargeability of alkaline Zn-MnO2 batteries: Experimental and mathematical studies.
Ingale, Nilesh D.

Rechargeability of alkaline Zn-MnO2 batteries: Experimental and mathematical studies. - 139 p.

Source: Dissertation Abstracts International, Volume: 76-05(E), Section: B.

Thesis (Ph.D.)--The City College of New York, 2015.

This item must not be sold to any third party vendors.

Batteries based on manganese dioxide (MnO2) cathodes are good candidates for grid-scale electrical energy storage, as MnO2 is low-cost, relatively energy dense, safe, water-compatible, and non-toxic. Alkaline Zn-MnO2 cells, if cycled at reduced depth of discharge (DOD), have been found to achieve substantial cycle life with battery costs projected to be in the range of $100 to 150/kWh (delivered). Commercialization of rechargeable Zn-MnO2 batteries has in the past been hampered due to poor cycle life. In view of this, the work reported here focuses on the long-term rechargeability of prismatic MnO2 cathodes at reduced DOD when exposed to the effects of Zn anodes and with no additives or specialty materials. Over 3000 cycles is shown to be obtainable at 10% DOD with energy efficiency >80%. The causes of capacity fade during long-term cycling are also investigated and appear to be mainly due to the formation of irreversible manganese oxides in the cathode. Analysis of the data indicates that capacity loss is rapid in the first 250 cycles, followed by a regime of stability that can last for thousands of cycles. A model has been developed that captures the behavior of the cells investigated using measured state of charge (SOC) data as input. An approximate economic analysis is also presented to evaluate the economic viability of Zn-MnO2 batteries based on the experiments reported here. The potential of Zn-MnO2 batteries as starting-lighting-ignition (SLI) batteries was also investigated. The impedance contributing parameters at high discharge rates were identified and their effect at high currents was investigated. It was found that prismatic configuration; optimized electrode thickness, electrolyte concentration and electrode size help to achieve high currents for short period of time. In this work, the potential of Zn-MnO 2 batteries for energy as well as power supply has been successfully investigated.

ISBN: 9781321491371Subjects--Topical Terms:

1018531
Engineering, Chemical.

Rechargeability of alkaline Zn-MnO2 batteries: Experimental and mathematical studies.
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100 1 $a Ingale, Nilesh D. $3 3171474
245 1 0 $a Rechargeability of alkaline Zn-MnO2 batteries: Experimental and mathematical studies.
300 $a 139 p.
500 $a Source: Dissertation Abstracts International, Volume: 76-05(E), Section: B.
500 $a Adviser: Sanjoy Banerjee.
502 $a Thesis (Ph.D.)--The City College of New York, 2015.
506 $a This item must not be sold to any third party vendors.
520 $a Batteries based on manganese dioxide (MnO2) cathodes are good candidates for grid-scale electrical energy storage, as MnO2 is low-cost, relatively energy dense, safe, water-compatible, and non-toxic. Alkaline Zn-MnO2 cells, if cycled at reduced depth of discharge (DOD), have been found to achieve substantial cycle life with battery costs projected to be in the range of $100 to 150/kWh (delivered). Commercialization of rechargeable Zn-MnO2 batteries has in the past been hampered due to poor cycle life. In view of this, the work reported here focuses on the long-term rechargeability of prismatic MnO2 cathodes at reduced DOD when exposed to the effects of Zn anodes and with no additives or specialty materials. Over 3000 cycles is shown to be obtainable at 10% DOD with energy efficiency >80%. The causes of capacity fade during long-term cycling are also investigated and appear to be mainly due to the formation of irreversible manganese oxides in the cathode. Analysis of the data indicates that capacity loss is rapid in the first 250 cycles, followed by a regime of stability that can last for thousands of cycles. A model has been developed that captures the behavior of the cells investigated using measured state of charge (SOC) data as input. An approximate economic analysis is also presented to evaluate the economic viability of Zn-MnO2 batteries based on the experiments reported here. The potential of Zn-MnO2 batteries as starting-lighting-ignition (SLI) batteries was also investigated. The impedance contributing parameters at high discharge rates were identified and their effect at high currents was investigated. It was found that prismatic configuration; optimized electrode thickness, electrolyte concentration and electrode size help to achieve high currents for short period of time. In this work, the potential of Zn-MnO 2 batteries for energy as well as power supply has been successfully investigated.
590 $a School code: 1606.
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650 4 $a Energy. $3 876794
650 4 $a Engineering, Electronics and Electrical. $3 626636
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773 0 $t Dissertation Abstracts International $g 76-05B(E).
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