NiCad (Nickel Cadmium) batteries ruled over the market for years. However, in recent years, they are getting challenged by newer Lithium-Ion batteries. Why? Well, we cannot tell you that in brief. It indeed requires a vivid discussion.
To make the discussion or contrast evident, here, we shall dwell on various respects i.e. their history, electrochemistry, manufacturing cost, environmental impact, applications, and so on. Let’s get them downright!
You will see a “memory effect” issue with NiCd batteries when you discharge and recharge them to the same state several times. But no worries, it doesn’t affect the battery capacity alarmingly. Some devices can, and some devices cannot endure the period of decreased voltage.
Besides, repeated overcharging causes a ”voltage depression” or ”lazy battery effect”. In such a situation, a NiCd battery pretends to be fully charged and gets discharged shortly. Even if the battery keeps its half capacity, it can sustain for 1000 plus cycles.
In addition to that, reverse charging would be a problem. It is also liable for reducing longevity. Also, it causes hydrogen gas that could be a danger. Else, NiCad batteries beget dendrites when they lack regular use. These get into the separator membrane between electrodes and result in internal short circuits and premature failure.
On the contrary, you require minimum maintenance for li-ion batteries. Devoid of creating a “memory effect,” they can be recharged. They can operate in a wider temperature range too! When we compare, we see its self-discharge is less than half. And thus, it becomes a good fit for modern fuel gauge applications.
However, lithium ion batteries are fragile. They need a special protection circuit for the sake of safe operation. These are the cons of this battery, no doubt. Additionally, such a circuit minimizes the peak voltage of every cell while charging. Also, it bars the cell voltage from dropping too low on discharge. It compels you to monitor the cell temperature to resist temperature issues.
NiCad battery– you can either use it individually or as a battery pack. You can use its cells in different needs such as –
Apart from these, you can use this battery in remote-controlled electric model airplanes, boats, cars, cordless power tools, and so on. That means the NiCd battery is an apt choice where you require a high surge power, plus a comparatively low internal resistance. Moreover, you can employ its bigger flooded cells in some crucial usage such as –
The Li-ion batteries are the ‘most prolific battery technology’ of today. It is going to dominate the upcoming days too. You can apply this battery for different necessary needs such as –
Likewise, you can use these batteries for your devices like cigars or pipes. No matter the amount of application, you may feel free as it has zero memory effect and a slow loss of charge while out of service. And that’s why it became widely popular for consumer electronics. At the same time, there is a growing demand for this battery in –
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