Li-ion batteries: These are made up of Lithium metal and are latest in rechargeable technology. As these are compact in size they can be used in most of the portable applications which need high power specifications. These are the best rechargeable batteries available. These have a nominal voltage of 3.7V (most commonly we have 3.6V and 7.2V) and have various ranges of power capacity (starting from 100s of mAh to 1000s of mAh). Even the C-rating ranges from 1C to 10C and Power density of Li-ion batteries is 126 Wh/Kg.
Advantages:
- Very light in weight.
- High C-rating.
- Power density is very high.
- Cell voltage is high.
Disadvantages:
- These are a bit expensive.
- If the terminals are short circuited the battery might explode.
- Battery protection circuit is needed.
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