Lithium-ion battery (Li-ion): what it is, how it works and what it does

The lithium-ion battery (abbreviated Li-ion) is a battery-chemistry designation recorded in the technical specifications of electronic devices, particularly mobile phones. In product data sheets it is listed under fields such as battery_chemistry or battery_type, identifying the electrochemical cell family used.

Presence in product specifications

In the sources consulted, the Li-ion designation appears as a battery attribute alongside its nominal capacity expressed in milliampere-hours (mAh). The values observed in the available records are:

• 5391 mAh — associated with the Nano SIM variant.
• 5567 mAh — associated with the eSIM-only variant.

The capacity difference between variants of the same model (approximately 176 mAh) reflects that the internal configuration of the device can influence the size of the installed cell.

Interpretation in a spec sheet

When a product states Battery Type: Li-ion or battery_chemistry = Li-ion, it is specifying the electrochemical cell family, not a commercial brand or a specific model. The capacity in mAh complements this information and allows a relative comparison of endurance between devices or variants.

Scope of available evidence

The data collected come from mobile-device specification sheets published on spec portals (GSM Arena, 91mobiles, Smartprix). This entry does not include information on electrode materials, nominal voltage, cycle life, charging protocols, or comparisons with other chemistries, as none of these are present in the cited evidence.

Limitations

• The nominal capacity (mAh) varies between variants of the same model; a single value should not be taken as representative of the entire range.
• The «Li-ion» designation groups a broad family of cells; without additional data (voltage, energy density, manufacturer) it is not possible to identify a specific cell.

Note: this entry is limited to the data verified in the cited sources (claim_ids 284673, 284951, 284952, 286215).