Recovery of discarded sulfated lead-acid batteries

Karami, Hassan; Asadi, Raziyeh

doi:10.1016/j.jpowsour.2008.12.153

Cited by 13 publications

(14 citation statements)

References 11 publications

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“…Kurşun asit akü teknolojisi en güvenilir ve uygun maliyetli güç kaynağı haline gelmiştir. Bugüne kadar üretilen batarya teknolojilerinden hiç biri Kurşun asit akülerin satış başarısına ulaşamamıştır [4]. Son yılarda bataryalarda enerji depolanması konusunda giderek artan ve yeniliklere öncülük eden çalışmaların ortaya çıkması ile akülerin mobil cihazlarda, otonom araçlarda, güneş enerjisi sistemlerinde, uzay ekipmanlarında, dizüstü bilgisayarlarda ve endüstriyel alanda kullanımı yaygınlaşmaktadır [5].…”

Section: Introductionunclassified

IoT Tabanlı Enstrümantasyon Sistemi ile Farklı Frekansların Kurşun Asit Akülerin Desülfasyonu Üzerine Etkilerinin İncelenmesi

Köseoğlu

AYDIN

2022

Düzce Üniversitesi Bilim Ve Teknoloji Dergisi

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Bu çalışmada, Kurşun asit (KA) akülerde sıklıkla rastlanan sülfatlanma sorununun çözümüne odaklanılmış, nesnelerin interneti (IoT) tabanlı enstrümantasyon devreleri kullanılarak, farklı frekanslardaki gerilim darbelerinin KA akülerin desülfasyonu üzerindeki etkileri deneysel olarak incelenmiştir. Bu amaçla, eşit koşullarda sülfatlandırılmış dört özdeş akü, farklı frekanslarda gerilim darbeleri ve DC gerilim uygulanarak şarj edilmiş, akü parametrelerindeki değişimler analiz edilmiştir. Analiz sonucunda akülerin yüke akım aktarabilme kapasitelerindeki düşüşün, DC gerilim ile şarj edilen aküde yüksek oranda, farklı frekanstaki gerilim darbeleriyle şarj edilen akülerde ise nispeten daha düşük oranda olduğu görülmüştür. Buna göre, yüksek frekanslı gerilim darbeleriyle desülfasyon işleminin, sülfatlanmış bir aküyü olumlu şekilde etkilediği görülmüştür.

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Section: Introductionunclassified

IoT Tabanlı Enstrümantasyon Sistemi ile Farklı Frekansların Kurşun Asit Akülerin Desülfasyonu Üzerine Etkilerinin İncelenmesi

Köseoğlu

AYDIN

2022

Düzce Üniversitesi Bilim Ve Teknoloji Dergisi

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“…The process is based on the phenomenon that battery accepts higher charging currents efficiently at low SOC/ high DOD (Depth of Discharge) and accepts lower charging currents as the SOC increases progressively [14,10]. If optimum amount of charge current is controlled as per the SOC/DOD, the battery will accept almost all of it with minimal temperature rise.…”

Section: Introductionmentioning

confidence: 99%

Fast Charger for Lead Acid Motive Power Batteries for E-Rickshaw

Sen¹,

Thacker²,

Roy³

et al. 2021

IJSGE

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Electric 3-wheeler Rickshaws are the most economical among battery powered electric vehicles. They cost INR 1,20,000 (USD 1615) to buy, including the price of a 48V100Ah deep cycle battery @ INR 20,000 (USD 270) and run around 80 KM on a single charge. No wonder there are already 15,00,000 E Rickshaws in India alone. These E-Rickshaws use Lead acid tubular or flat plate batteries, which cost less than half the price of an equivalent Lithium Battery & have a service life of around 600-800 cycles of 80% discharge & recharge if maintained properly. However, with conventional chargers, the Lead Acid Batteries require 6-7 hours for 80% recharge and 10 hours for a full recharge after a discharge of 80% of rated capacity. Faster recharge increases battery temperature, copious gas evolution & reduces its life. This has been a disadvantage for lead acid batteries in EVs. Lithium-Ion battery requires 2 hours for 80% recharge and 3 hours for a full or recharge. The objective of the research work was to try out and develop a charger, which can fast recharge E Rickshaw battery up to 80% of capacity in lesser charging time without increasing battery temperature or gassing, avoiding battery service life reduction. Method of fast charging was to continuously explore the charge acceptance limits of battery and feed it with optimum charging current so as not to increase temperature & gassing. The unique fast charger requires only 3 hours & 30 minutes to recharge the battery to 80% of its capacity, while temperature rises by 3°C to 4°C, less than half of that in normal charging process. In addition, a super-fast "opportunity charge" during one-hour lunchtime, injects 35% energy in 65 minutes, giving E Rickshaws an extra 35 KM run each time. It is proven that service life is same or more. The fast charger prototypes were successfully field tested on 40 vehicles each at Kolkata & Baharampur in West Bengal, India, to the entire satisfaction of the E Rickshaw drivers. It is now in mass production & sales. Lead Acid batteries in E-Rickshaws, E-Bikes, golf carts & electric trucks are discharged and recharged daily or more. A safe & fast charger increases productivity & revenue.

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“…As a result, the hard PbSO 4 on the battery positive and negative plates contributes to the capacity loss. It causes the battery has less ability to deliver the discharge current to the load [15,16]. In addition, the low capacity lead acid batteries will be going through the recycling process.…”

Section: Introductionmentioning

confidence: 99%

Parameters observation of restoration capacity of industrial lead acid battery using high current pulses

Ibrahim

Ponniran

Rahman

et al. 2020

IJPEDS

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Batteries play an essential role on most of the electrical equipment and electrical engineering tools. However, one of the drawbacks of lead acid batteries is PbSO<sub>4</sub> accumulates on the battery plates, which significantly cause deterioration. Therefore, this study discusses the discharge capacity performance evaluation of the industrial lead acid battery. The selective method to improve the discharge capacity is using high current pulses method. This method is performed to restore the capacity of lead acid batteries that use a maximum direct current (DC) of up to 500 A produces instantaneous heat from 27°C to 48°C to dissolve the PbSO<sub>4</sub> on the plates. This study uses an 840 Ah, 36 V flooded lead acid batteries for a forklift for the evaluation test. Besides, this paper explores the behavior of critical formation parameters, such as the discharge capacity of the cells. From the experimental results, it can be concluded that the discharge capacity of the flooded lead acid battery can be increase by using high current pulses method. The comparative findings for the overall percentage of discharge capacity of the batteries improved from 68% to 99% after the restoration capacity.

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Recovery of discarded sulfated lead-acid batteries

Cited by 13 publications

References 11 publications

IoT Tabanlı Enstrümantasyon Sistemi ile Farklı Frekansların Kurşun Asit Akülerin Desülfasyonu Üzerine Etkilerinin İncelenmesi

IoT Tabanlı Enstrümantasyon Sistemi ile Farklı Frekansların Kurşun Asit Akülerin Desülfasyonu Üzerine Etkilerinin İncelenmesi

Fast Charger for Lead Acid Motive Power Batteries for E-Rickshaw

Parameters observation of restoration capacity of industrial lead acid battery using high current pulses

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