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IT Support & Hardware · Foundational

Lithium-Ion Battery (Li-ion)

The rechargeable battery chemistry used in laptops, phones, and tablets.

Definition

Li-ion batteries offer high energy density but degrade with heat and full charge cycles and can ignite if damaged or punctured. Shipping and disposal are regulated. Lithium-polymer (Li-Po) is a variant with flexible pouch packaging.

Example

Recycle a swollen laptop battery through a certified e-waste program, not the trash.

Exam tip

Never dispose of lithium batteries in regular trash; follow hazardous-waste rules.

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