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Causes of Lithium-Ion Battery Capacity Degradation — Technical Insights from EverExceed Lithium Battery Solutions

Dec , 26 2025

A lithium-ion power battery is a highly complex electrochemical system composed of cathode and anode materials, current collectors, electrolyte, and separator. Under ideal conditions, only the reversible intercalation and de-intercalation of lithium ions occur between the electrodes, without any parasitic reactions. In this case, lithium ions are not consumed, and the battery capacity remains stab...

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Key Factors Affecting Lithium-Ion Battery Cycle Life

Dec , 26 2025

— From Cell Design to System Management | EverExceed Technical Overview The cycle life of a lithium-ion battery is determined by a combination of intrinsic cell factors, external operating conditions, and system-level management. Among these, cell design and manufacturing quality form the foundation, while operating stress and battery management strategies directly influence long-term perfor...

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Impact of Lithium Battery PACK Compression Bars on Internal Resistance

Dec , 31 2025

In lithium battery PACK design, compression bars (fixing strips) play a critical mechanical role, but they also have a direct and long-term impact on the internal resistance of the battery pack. At EverExceed, this factor is fully considered in the design of lithium battery solutions for energy storage systems, UPS backup power, and industrial applications. 1. Core Mechanism: Influence on Contact ...

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Pros and Cons of Parallel Operation of High-Voltage Lithium Battery Clusters

Dec , 31 2025

In large-scale high-voltage lithium energy storage systems, parallel operation of battery clusters is a common architecture used to achieve higher capacity, power scalability, and system reliability. At EverExceed, this architecture is widely applied in grid-scale energy storage, UPS backup power systems, and industrial power solutions. However, while parallel connection offers significant advanta...

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Understanding the Difference Between Cycle Life and Calendar Life of LiFePO₄ Batteries

Jan , 09 2026

In the lithium battery industry, especially for LiFePO₄ (Lithium Iron Phosphate) batteries widely used in telecom, UPS, and energy storage systems, battery lifespan is usually evaluated from two critical dimensions: cycle life and calendar life. As a global leader in industrial battery solutions, EverExceed designs LiFePO₄ batteries with balanced optimization of both factors to ensure long-term re...

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Four Core Functions of Commercial & Industrial Energy Storage Systems

Jan , 09 2026

As electricity pricing mechanisms become more market-oriented and carbon reduction requirements continue to rise, Commercial & Industrial (C&I) Energy Storage Systems have evolved from optional investments into essential energy management infrastructure. EverExceed, with extensive experience in lithium battery and energy storage solutions, delivers reliable C&I energy storage systems d...

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What Is Battery DOD (Depth of Discharge)?

Jan , 17 2026

Depth of Discharge (DOD) refers to the percentage of a battery’s rated capacity that has been discharged during a single cycle. Formula:DOD = (Discharged Capacity / Rated Battery Capacity) × 100% Examples: A 100 Ah LiFePO₄ battery that delivers 30 Ah has a DOD of 30%. If the battery is discharged until only 20% state of charge (SOC) remains, the DOD is 80%. DOD = 100% represents a full...

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Impact of High-Rate Discharge on Battery Service Life

Jan , 17 2026

In many applications such as UPS systems, energy storage systems (ESS), fast-charging solutions, and high-power industrial equipment, batteries are often required to operate under high discharge rates. While high-rate discharge enables higher power output, it also poses significant challenges to battery lifespan, safety, and long-term reliability. At EverExceed, we design lithium battery systems w...

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