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How does a mobile battery get damaged?

Published in Mobile Batteries 3 mins read

Mobile phone batteries, specifically lithium-ion batteries, can be damaged in several ways, primarily affecting the battery's capacity, lifespan, and overall performance.

Factors Contributing to Mobile Battery Damage

Here's a breakdown of how mobile phone batteries get damaged:

Heat Exposure

  • Heat and the Anode: Heat is a major enemy of phone batteries. It can specifically damage the anode, the part of the battery that receives electricity during charging. The reference material states: "Heat can hurt your phone battery's anode". This makes the anode more prone to fracturing.

Charging Habits

  • Overcharging: Leaving your phone plugged in even after it's 100% charged can generate extra heat and stress on the battery. This can degrade its capacity over time.
  • Using the Wrong Charger: Using chargers that don't match your phone’s voltage requirements can also damage the battery.
  • Fast Charging: While convenient, frequent fast charging can generate excessive heat. This can put extra stress on the battery.

Physical Damage

  • Impacts: Dropping your phone can cause physical damage to the battery and other components, leading to malfunctions.
  • Penetration: Puncturing the battery can lead to chemical leaks or even fires.

Age

  • Chemical Degradation: All batteries degrade over time. The chemical reactions within them become less efficient, leading to a shorter charge and a reduced lifespan.

The Anode's Vulnerability

As referenced, the anode of lithium-ion batteries is particularly susceptible to damage.

Anode Fracturing

  • The reference explicitly mentions: "It's also where lithium-ion batteries face a particular weakness: anode fracturing". Heat, overcharging and the general process of charging and discharging contribute to this vulnerability. This fracturing can reduce the battery’s capacity and performance.

Summary Table of Battery Damage

Cause Effect
Heat Exposure Damage to the anode; increased chance of anode fracturing.
Overcharging Heat generation, stress on the battery
Wrong Charger Battery damage due to incorrect voltage
Fast Charging Heat generation, added stress on battery
Physical Impacts Physical damage to the battery
Age Chemical degradation, reduced lifespan

Practical Tips to Extend Battery Life

  • Avoid Extreme Temperatures: Do not leave your phone in direct sunlight or excessively cold environments.
  • Use the Correct Charger: Always use the charger that came with your phone or a certified replacement.
  • Avoid Full Charges and Discharges: Try to keep your phone between 20% and 80% charge for optimal battery health.
  • Minimize Fast Charging: Use fast charging sparingly, opting for slower charging when feasible.
  • Handle Your Phone Carefully: Avoid dropping or exposing your phone to physical impacts.

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