show / hide sidebar
Li-Ion Rechargeable Batteries
For many years, Ni-Cd (nickel-cadmium) batteries have been the only option for portable appliances and devices. More than two decades ago, started the mass production of two batteries - Ni-Mh (nickel metal hydride) and Li-ion (lithium-ion) rechargeable batteries were being produced.
batteries are falling behind to provide more space to Li-ion batteries, which
are used in almost any wireless technology - electric toothbrushes, electric
razors, phones, tablets, laptops, screwdrivers, electric bicycles, cars, UPS systems, etc.
The trend shows that
Ni-Cd abd Ni-Mh usage will she shift towards Li-ion technology and this is not by accident. It is due to the many positive aspects of
lithium ion batteries which is expected to grow on an even larger scale.
Nevertheless, the main benefit
of using Li-ion rechargeable batteries instead of Ni-Cd and Ni-Mh is the energy
they provide, which is twice as much. Therefore, for a unit of energy a bigger
capacity is achieved. Also, a lithium ion cell has a higher voltage (3.6V) in
contrast to the nickel-cadmium or nickel-metal hydride (1.2V). This allows us
to purchase battery packs with just one or several cells.
In addition, a great benefit of lithium ion battery
is the ability to be stored fully
discharged. This is a distinctive feature compared to the standard Ni-Cd and Ni-Mh
batteries. Subsequently, we can also derive that Li-ion
batteries do not have the “memory effect” which is very specific for the Ni-Cd
batteries. Thus, it is not necessary to make plans for mandatory
charge and discharge cycles to ensure longer battery life.
Furthermore, a lithium ion battery has longer
lifetime than nickel cadmium or nickel metal hydride battery. For instance, the
number of lifecycles a li-ion battery can perform is more than 1000 as compared
to just about 500 lifecycles for Ni-Mh and Ni-Cd batteries.
Li-ion battery has low self-discharge rate - less than half of the nickel cadmium. In addition, Li-ion cells cause less environmental damage than other types of rechargeable batteries.
Lithium-ion batteries contain flammable chemical
electrolyte. If a battery is used beyond capacity, its electrochemistry can
experience thermal runaway and overheat, which may cause fire or explosion.
What’s more, even if just one cell in the lithium-ion
battery does a thermal runaway it can spread to the rest of the cells and
worsen the effect.
Despite the numerous advantages, lithium ion
batteries must follow strict rules when transported. Either in large quantities
or a single li-ion battery, certain safety rules must be strictly observed. When
it comes to charging a li-ion battery we must note that they can be charged solely
with specially designed chargers. They are slightly more expensive compared to
the regular SLA chargers. In addition, Li-ion battery prices are also higher.
To sum it up, we can say that lithium ion
batteries slowly but surely seize more and more positions in modern appliances,
becoming an integral part of the future technology. This progress is due to the
many positive aspects they carry and therefore, they are a preferred portable
energy source of today's engineers and technologists.
Follow us on:
for daily company articles and info!
Why Should I Buy A Power Bank? Nowadays, everyone strives to keep pace with all the technological trends. Everyone wants to have a modern and functional smartphone, tablet or e-book to do numerous activities. Naturally, everyone has faced the main disadvantage of these devices - the rapid battery drain. How many times have you asked yourself "now how do [...]
Basic Rules For Using Li-Po Batteries Lithium-Polymer (Li-Po) rechargeable batteries have become increasingly popular and are being used in various devices. Li-Po battery for incorporation into GPS devices, tablets, MP3 players, portable speakers, RC models, electric bicycle batteries, evening and built-in. The main and probably the biggest advantage is that they have the ideal balance between weight, capacity, and cost. Due to [...]
Battery FAQsWhere should I store the batteries?Replacement Battery Store recommend that you store the purchased batteries in dry places with a relatively constant temperature without being too high or too low. The temperature extremes affect the battery. If you haven’t used the device for which you bought the batteries for a long time, you can remove them from [...]
How are lithium batteries recycled?Recycling of lithium-ion batteries represents an important opportunity of obtaining secondary raw materials.There is an existing threat to the availability of lithium needed to produce this type of batteries. This threat redirects attention to ensuring a continuous supply of materials needed for the green revolution through reuse and recycling of batteries.Lithium is consumed in sectors such as construction, [...]
UPS System And Battery Maintenance Your UPS system protects you when there are critical moments. Depending on the business scope an hour power outage can cost a lot. UPS systems are essential so to ensure data and equipment are backed up and running at all times. Repair and Maintenance Maintenance must be performed as follows: mechanical checks, [...]
Battery and Capacity LossCapacity is a basic feature of a battery, it is an indicator that tells you how long a battery can be used once loaded. Next comes the loss of capacity - a phenomenon, from which all batteries suffer. It can be caused by various factors which you can find right in this [...]
Batteries for WheelchairsElectric wheelchairs are usually much heavier than manual wheelchairs due to the carrier frame which is stronger in order to support the battery and the engine. Wheelchairs require a special type of deep cycle battery. It is recommended that you charge the wheelchair batteries every night after usage in order to keep them fully [...]
ATV Service Requirements and MaintenanceWe are already in the middle of autumn, winter is close as well, and for some of us, who enjoy really riding outside in the fresh air, it is the perfect time of the year for some adventures with your ATV. Below you can find some tips of how to maintain it, especially during [...]
What is a battery? Battery is the generic name for all types of electric power sources without removable parts. It is most commonly used for electrochemical current sources consisting of one or several electrochemical elements (cells). When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode. The distinctive features [...]