Cycle Life: A Key Factor Affecting Usage Costs

For power batteries, cycle life is a core indicator directly related to usage costs. The longer the cycle life, the lower the frequency of battery replacement, and the input costs throughout the whole life cycle will naturally decrease accordingly - whether it is the power battery of a new energy vehicle or the battery pack of an energy storage power station, extending the cycle life is a key path to control costs. Behind this, the long-term protection of components is particularly important, and the professional protection technology of Lankwitzer is playing an indispensable role.

Current Status of Power Battery Loss

During the long-term charge-discharge cycles of power batteries, internal and external components are faced with multiple loss risks. The outer shell and module frame, which are exposed to complex environments for a long time, may be corroded due to humidity and slight leakage of electrolyte, and may also have structural wear due to vibrations during vehicle driving and temperature fluctuations during the operation of energy storage equipment, as shown in the following figure. The damage to these components will directly affect the internal stability of the battery, leading to uneven stress on the cells, reduced thermal management efficiency, and then accelerating the attenuation of battery performance and shortening the cycle life.

 Power battery components are prone to corrosion and wear in complex environments

Protection Solutions of Lankwitzer Coatings

Lankwitzer  provides precise protection solutions for key components according to the usage scenarios of power batteries. The special protective coatings developed by it have excellent corrosion resistance, which can form a dense protective layer on the surface of the battery shell and module frame, effectively resisting the erosion caused by humid environment and electrolyte leakage, and avoiding structural failure of components due to corrosion. At the same time, the coatings have outstanding impact resistance and aging resistance. In the face of frequent vibrations during vehicle driving and temperature alternations in energy storage scenarios, they can reduce the physical wear and aging speed of components and maintain the integrity of the structure.

Verification of Actual Effects

When the battery components are stably protected, the stability of the internal structure is guaranteed, and the cells can complete the charge-discharge cycle in a better environment. It has been verified in practice that the loss rate of power battery components protected by Lankwitzer Coatings is significantly reduced during long-term use, and the cycle life of the battery is effectively extended. Under standard charge-discharge conditions, for a battery that may have obvious attenuation after 2000 cycles, with the help of component protection, the attenuation speed is slowed down, and the actual effective cycle times are further increased.

Reflection of Cost Reduction

The extension of cycle life is directly transformed into the reduction of usage costs. Fewer replacement times mean saving the material and labor costs for frequent battery replacement. For family cars, it can reduce the expenditure on battery replacement once every few years; for large-scale energy storage projects, it can significantly reduce the maintenance costs in long-term operation. Taking common new energy vehicles as an example, the cost of replacing a battery is about 50,000 to 100,000 yuan. If the cycle life is extended, such high expenses can be effectively reduced. For energy storage power stations, taking a medium-sized energy storage power station (10MW/20MWh) as an example, if the battery needs to be replaced once every 8-10 years originally, with a cost of tens of millions of yuan, after improving the cycle life through Lankwitzer Coatings, the replacement cycle is extended and the cost can be significantly reduced.

It can be said that Lankwitzer , in the way of "protection empowerment", has become an important help for power batteries to extend cycle life and control usage costs.