How to increase the lifespan of Lithium ion Batteries

How to increase the lifespan of Lithium ion Batteries


There is a good rationale for the prevalence of rechargeable Lithium-ion and Lithium ion-polymer batteries. Lithium-ion batteries are more eco-friendly, simple to charge, and simpler to maintain than other rechargeable battery kinds. In addition, they provide a greater energy density, a higher cell voltage, reduced self-discharge, and an exceptionally long cycle life. Due to its relatively high voltage (2.9 V to 4.2 V), several portable goods can be powered by a single cell, which simplifies the overall design of the product.

Given the application, it may be debatable which battery characteristic is most important. Too much emphasis has been placed on increased Lithium-ion battery capacity in the pursuit of the greatest product runtime in the smallest physical container. Sometimes a battery with a longer lifespan, more charge cycles, or safety features is more important than one with a bigger capacity.

Before addressing how the battery charger influences the battery's lifespan, let's examine the Lithium-ion battery's features. Since lithium is one of the lightest, most reactive, and has the largest electrochemical potential, it is the best metal for batteries. Lithium-ion batteries utilize lithium ions, which flow between the cathode and anode during charge and discharge, rather than lithium in its metallic form.

How can the longevity of E-Schooter Lithium Ion batteries be improved?

Charging batteries in severe temperatures has a negative effect on their cycle life. The ideal temperature for charging a battery is between 25 and 30 degrees Celsius. The battery regularly heats up when in use. As virtually all two-wheeler battery packs are enclosed and lack cooling, the battery's internal temperature will rise during use. Therefore, do not reconnect the battery immediately after use. If you wait about an hour before charging the battery, it will have reached room temperature. The battery can reach its optimal charging temperature of 25 to 30 degrees Celsius if the air conditioner is operating.

Select the appropriate charge termination method

By preventing a battery from being fully charged, selecting a charger with minimum charge-current termination (C/10 or C/x) can extend its lifespan. For example, ending a charge cycle when the current falls to C/5 is comparable to reducing the float voltage to 4.1 V. In both instances, the battery is charged to approximately 85 percent of its capacity, a crucial factor in determining battery life.

Maintain the battery's temperature at ambient

To extend battery life, it is vital to avoid direct sunlight and high temperatures. Attempt to store the battery at a temperature between 25 and 30 degrees Celsius between charges. Extreme temperatures can accelerate the deterioration of practically every battery component. For automobiles without a removable battery, park in the shade, avoiding direct sunlight and extreme heat. If you do not intend to utilize the vehicle for an extended period of time, maintaining a SOC of 50 percent or less is better. This strategy will reduce the calendar degeneration of the battery.

Reduced charge voltage increases battery durability.

It is stated that every 0.10V/cell drop in peak charge voltage increases the cycle life of lithium-ion batteries by fourfold. A lithium-ion battery charged to 4.20V/cell will typically last between 300 and 500 cycles. If the battery is only charged to 4.10V/cell, its lifespan can be prolonged to 600–1,000 cycles; 4.0V/cell should provide 1,200–2,000 cycles, and 3.90V/cell should supply 2,400–4,000 cycles. A lower peak charge voltage negatively impacts the battery's storage capacity. Nevertheless, battery life is typically more important than charging capacity.

Batteries dislike being overfilled or underfilled

In an ideal situation, lithium-ion batteries should never be charged beyond 80 percent or discharged below 20 percent, as charging or discharging beyond this range stresses and kills them. If the endurance of a fully charged battery is necessary, a full charge is recommended. However, the device should be disconnected from the charger as soon as it reaches 10 percent.

Use rapid charging when necessary

Rapidly recharging a lithium-ion battery is advantageous since it enables the device, car, or another object to resume operation quickly. However, it should be employed only when absolutely required. However, rapid charging is more detrimental to the battery, and frequent fast charging may shorten its lifespan.