Electric mobility (E-Mobility) has expedited transportation decarbonization worldwide. Lithium-ion batteries (LIBs) could help transition gasoline-powered cars to electric vehicles (EVs). However, several factors affect Li-ion battery technology in EVs' short-term and long-term reliability. Li-ion batteries' sensitivity and non-linearity may make traditional dependability models unreliable. This state-of-the-art article investigated power fade (PF) an. Electric mobility (E-Mobility) has expedited transportation decarbonization worldwide. Lithium-ion batteries (LIBs) could help transition gasoline-powered cars to electric vehicles (EVs). However, several factors affect Li-ion battery technology in EVs' short-term and long-term reliability. Li-ion batteries' sensitivity and non-linearity may make traditional dependability models unreliable. This state-of-the-art article investigated power fade (PF) and capacity fade (CF) as leading reliability indicators that help analyze battery reliability under various ambient temperatures and discharge C-rates. Trends in LIBs applications for EVs and E-mobility are discussed. Furthermore, qualitative analysis and risk management were conducted to identify the reliable and unreliable zones of battery operation based on these indicators and the degradation circumstances implemented in recent publications. Besides, the influence of degrading circumstances on reliability indicators over the battery's lifespan, such as a high C-rate at a low temperature throughout the battery's lifetime, has been presented in a comprehensive investigated case study in this work.••Capacity declineDegradationElectric vehiclesLithium-ion batteriesPower fadeReliabilityBatteries are rapidly becoming one of the most essential components of future transportation systems. However, they strain the dependability of transportation systems,. The fundamental challenge is the connection between passive components that cause electromagnetic interactions and mechanical components that generate electromechanical and control interactions in the battery system. These interactions, which may create system instability, must be considered during safety assessment, contingency of failures, and risk analysis. Technically, reliability refers to a system's capacity to work as intended without failure and within a set of performance limits for a certain period under specified lifespan circumstances.In this regard, Li-ion battery technologies have been extensively employed in current electric transportation applications on land, sea, and air because of their high galvanic potential, energy density, minimal self-discharge, and extended life duration. In addition, battery capacity and power fade estimation, safety management (such as thermal runaway that means that LIBs enter a self-heating state which cannot be controlled), fast-charging solutions, the complex roots of degradation, sensitivity, and nonlinear behavior have all become hotspots and challenging problems in terms of dependability in electric applications. As a result, assessing the dependability of Li-ion batteries has be. LIBs are used in various applications because of potentials such as high-power density, substantial life expectancy, low operating temperatures, high voltage, low volatility rates, and alternate positives. Fig. 2 shows the main components of a graphite anode material Li-ion battery; the cathode, anode, electrolyte, separator, and current collectors. During charge and discharge conditions, the elements feed the EVs as an energy resource. Fig. 3 illustrates the robust relationship between Li-ion batteries, reliability, and EVs.Increasing technological innovation in a variety of industries has produced a desire for batteries that are less expensive, more dependable, more potent, and more effective. Several rechargeable battery types have been introduced to date, with some garnering more attention for proper performance in EVs,.LIBs play a crucial role in EVs and are considered these vehicles' primary energy storage technology. There are several reasons why LIBs are essential in EVs:••LIBs. 3.1. Capacity fadesWhen a battery cell's capacity fades, it loses 20 % of its capacity, referred to as the battery's EoL in EVs. Temperature, depth of discharge (DoD), load profiles (discharge technique), and charging condition (C-rate) are all linked to the rate of capacity decline. In the literature, different definitions for battery capacity are offered. The datasheet determines the battery's nominal capacity at normal temperatures (25 °C) and the charge rate C-rate. The starting capacity sets the maximum capacity the battery can extract in early cycles. The highest rate of charge that can be calculated during a battery's early cycles is its true capacity. The discrepancy between the original and actual capacities is accounted for by capacity loss (capacity fade) caused by aging processes.3.2. Power fadesDue to the internal impedance of the cell throughout the battery's lifespan, power fade reduces the rate of power the battery can provide. Thevenin's model may depict the battery's ohmic and concentration polarization (chemical behavior).The activation polarization associated with electrochemical process.