NiMH vs NiCd Batteries under High Charging Rates

Viera, J.C.; González, Miguel Ángel Álvarez; Anton, J.C.; Campo, J.C.; Ferrero, Francisco; Valledor, M.

doi:10.1109/intlec.2006.251592

Cited by 22 publications

(10 citation statements)

References 1 publication

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“…NiCd has a high self-discharge rate of 10-15% per month. [48] The NiCd can be charged with the rate of 1C and achieve a high percentage of nominal capacity in just 55 minutes; increasing the charging rate to 2C, a low charging current rate needs to be applied at the end of charging until full charge state to prevent damage of the battery due to overcharging [49].…”

Section: B Nickiel-cadmium Batterymentioning

confidence: 99%

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Model-Free Non-Invasive Health Assessment for Battery Energy Storage Assets

Sobon

Stephen

2021

IEEE Access

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With the increasing application of battery energy storage in buildings, networks and transportation, an emerging challenge to overall system resilience is in understanding the constituent asset health. Current battery energy storage considerations focus on adhering to the technical specification of the service in the short term, rather than the long-term consequences to battery health. However, accurately determining battery health generally requires invasive measurements or computationally expensive physicsbased models which do not scale up to a fleet of assets cost-effectively. This paper alternatively proposes capturing cumulative maloperation through a physics model-free proxy for cell health, articulated via the strong influence misuse has on the internal chemical state. A Hidden Markov Chain approach is used to automatically recognize violations of chemistry specific usage preferences from sequences of observed charging actions. The resulting methodology is demonstrated on distribution network level electrical demand and generation data, accurately predicting maloperation under a number of battery technology scenarios.

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Section: B Nickiel-cadmium Batterymentioning

confidence: 99%

“…The charging rate of the NiMH battery above 0.5 C can be dangerous due to the fast raising of internal battery temperature. [49] Additionally, charging at higher rates, 1 C, is inefficient and causes a reduction of battery standard capacity to less than 65% from before charging event [49].…”

Section: Nickel-metal Hybrid Batterymentioning

confidence: 99%

Model-Free Non-Invasive Health Assessment for Battery Energy Storage Assets

Sobon

Stephen

2021

IEEE Access

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“…Ni-MH battery is able to work in high-level voltage with desirable energy density, but its lifetime is relatively low. 11 Recent advancements of Li-ion battery technologies make this type a unique option for utilizing in ESSs of EVs from different aspects. It has relatively higher power density, longer lifetime, and higher charge/discharge rates.…”

Section: Introductionmentioning

confidence: 99%

“…Ni‐Cd type has some merits such as long lifetime, high discharge rate, and low cost, whereas low energy density and environmental issues are among disadvantages of this type. Ni‐MH battery is able to work in high‐level voltage with desirable energy density, but its lifetime is relatively low 11 . Recent advancements of Li‐ion battery technologies make this type a unique option for utilizing in ESSs of EVs from different aspects.…”

Section: Introductionmentioning

confidence: 99%

Contribution management of lead‐acid battery, Li‐ion battery, and supercapacitor to handle different functions in EVs

Farjah

Ghanbari

Seifi

2019

Int Trans Electr Energ Syst

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Summary One of the most concerning issues regarding electrical vehicles (EVs) is limited driving cycle and protracted charging process. In order to improve the efficiency of current batteries, appropriate energy management systems (EMSs) could be deployed to compensate these defects. To overcome these obstacles, an EMS including a bidirectional Cuk converter and a battery storage with two types of batteries is proposed. Lithium‐ion (Li‐ion) and lead‐acid battery types are considered as the main battery and auxiliary battery packs, respectively. Moreover, a supercapacitor is utilized to help the auxiliary battery for handling fast dynamics of the power delivery in braking and acceleration conditions. While the function of the main battery is to be charged and discharged in normal conditions, handling harsh conditions lies upon the auxiliary battery. So, the auxiliary battery can be rapidly discharged during acceleration and quickly recharged in charge stations. Furthermore, it can be used for an exchangeable battery strategy aimed at reducing congestion at charge stations. In order to plan for different scenarios, a Cuk converter is employed as a convenient interface between the batteries to manage power sharing. Operation of the system in different modes are discussed comprehensively. The performance of the proposed topology is assessed using some simulations and experiments in different conditions.

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“…The main disadvantage is that Ni-MH technology is not so robust in comparison with Ni-Cd technology. Operation in extreme conditions such as extreme temperature modifies the special microstructure of metal hydride active material reducing electrode hydrogen storage capacity; so, battery characteristics is seriously affected [3]. In our project, we envisage using Ni-MH secondary batteries, because they are environment friendly, in order to power a wireless sensor network node for monitoring the health of aircraft engines.…”

Section: Introductionmentioning

confidence: 99%

Study of the ambient temperature effect on the characteristics and the lifetime of Nickel-Metal Hydride secondary battery

Meekhun¹,

Boitier

Dilhac³

2009

2009 IEEE Electrical Power &Amp; Energy Conference (EPEC)

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This paper describes experiment results aiming at analyzing the ambient temperature effect on the lifetime of commercial Nickel-Metal Hydride (Ni-MH) secondary battery. In addition the paper presents the battery characteristics at extremely different ambient temperatures. To investigate this effect, a climatic chamber, has been used to simulate these conditions. Charge and discharge experimental curves of voltage versus time at different temperatures are given for temperatures ranging from -40°C to 80°C. Finally the batteries are retested at room temperature in order to study the temperature effect on the battery ageing.

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NiMH vs NiCd Batteries under High Charging Rates

Cited by 22 publications

References 1 publication

Model-Free Non-Invasive Health Assessment for Battery Energy Storage Assets

Model-Free Non-Invasive Health Assessment for Battery Energy Storage Assets

Contribution management of lead‐acid battery, Li‐ion battery, and supercapacitor to handle different functions in EVs

Study of the ambient temperature effect on the characteristics and the lifetime of Nickel-Metal Hydride secondary battery

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