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A lithium-ion battery (Li-ion battery) is a rechargeable battery used in many modern devices – from smartphones and laptops to e-bikes. Due to its high energy density, low self-discharge, and long lifespan, it is now considered the standard in mobile power supply.
What is a lithium-ion battery?
A lithium-ion battery is an electrochemical energy storage device in which lithium ions move between two electrodes:
Anode (usually graphite)
Cathode (e.g., lithium metal oxide)
Electrolyte (enables ion transport)
During charging and discharging, lithium ions move back and forth between these electrodes – hence the name.
How does a lithium-ion battery work?
The mechanism is based on the movement of lithium ions:
🔋 While loading:
Lithium ions move from the cathode to the anode.
Energy is stored in the battery.
⚡ During unloading:
Lithium ions migrate back to the cathode
The stored energy is released as electric current.
This process is reversible and can be repeated for several hundred to a thousand charging cycles .
Advantages of lithium-ion batteries
Lithium-ion batteries have become the standard for good reasons:
High energy density → lots of energy at low weight
Low self-discharge → long shelf life
No memory effect → flexibly reloadable
Long lifespan → many charging cycles possible
Fast charging → short charging times
Especially in the field of e-bikes, these characteristics are crucial for range and everyday usability.
Disadvantages and challenges
Despite their advantages, there are also some limitations:
Aging : Capacity decreases over time.
Temperature sensitivity : Extreme heat or cold damages the battery.
Cost : Higher than with older battery technologies
Fire risk : Possible in case of damage or improper use
Typical areas of application
Lithium-ion batteries can now be found almost everywhere:
Smartphones and tablets
Laptops
Electric cars
Power banks
Tools (e.g. cordless screwdriver)
Lifespan and care
The lifespan of a lithium-ion battery depends heavily on usage. It can be significantly extended with the right measures:
Tips for a long lifespan:
Do not permanently discharge the battery to 0%
Ideal charging range: 20% – 80%
Protect from heat and frost
For longer storage: approx. 40–60% charge level
Use original chargers
Significance for e-bikes
In the e-bike sector, the lithium-ion battery is the central component. It determines:
System lifespan
Modern e-bike batteries now reach capacities of 400 to over 800 Wh , which can enable ranges of over 100 km – depending on riding style, terrain and support level.
Conclusion
The lithium-ion battery is a key component of modern mobility and electronics. Especially in e-bikes, it provides powerful, lightweight, and long-lasting energy storage. Understanding how it works and maintaining it properly can significantly extend its lifespan and ensure long-term, high performance.
E-bike battery
E-bike battery for MYVELO Berlin
€539,00
€539,00
€539,00
-
€539,00
Current price
€539,00
Original price
€539,00
-
Original price
€539,00
Original price
VAT included.
incl. FREE shipping & free returns
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