Fast‐Charging Strategies for Lithium‐Ion Batteries: Advances and Perspectives

Abstract

Rapid development of high-energy-density lithium-ion batteries (LIBs) enables the sufficient driving range of electric vehicles (EVs). However, the slow charging speed restricts the popularization of EVs. Commitment to fast-charging research is considered to be the key to advance the EVs strategy. This Review discusses the kinetic factors limiting the fast-charging capability at the material aspects, and summarizes the recent research strategies to achieve fast-charging performance of high-energy-density LIBs through electrode engineering, electrolyte design, and interface optimization. The increasingly important role of computational tools and advanced characterization techniques in fundamentally understanding the failure mechanism of LIBs is emphasized, and the analysis of the thermal runaway problem in the fast-charging process and the corresponding thermal optimization scheme is also involved to give the guidance for the more rational battery design. In view of these factors and strategies, some future perspectives for realizing high-performance fast-charging LIBs are proposed, which are expected to facilitate the large-scale application of fast-charging LIBs in EVs.

Enhancing composite electrode performance: insights into interfacial interactions

“…As articulated above, the conductive carbon, polymer, and active material within the electrode exhibit unique functionalities and attributes. 23 The pairwise interactions among these This journal is © The Royal Society of Chemistry 2024 Chem. Commun., 2024, 60, 1979-1998 | 1993 components substantially determine battery capacity and lifetime.…”

“…As articulated above, the conductive carbon, polymer, and active material within the electrode exhibit unique functionalities and attributes. 23 The pairwise interactions among these components substantially determine battery capacity and lifetime. From a more comprehensive standpoint, concurrently considering all three components during electrode material optimization may pave the way for strategies to achieve higher capacity and extended battery life.…”

“…Investigating them in isolation is unwise; a holistic systems approach is requisite as alterations in one interface can resonate effects onto others. 23 For instance, modifications in the active material, such as employing materials with varying redox potentials, can impact the electrochemical window. 24 Such alterations can directly influence the conductive carbon and polymeric binder stability.…”

Lithium-Ion Battery Power Performance Assessment for the Climb Step of an Electric Vertical Takeoff and Landing (eVTOL) Application

“…At the point where the cell polarizes to the lower end cutoff voltage 3 V, we are not cycling significant amounts of lithium from the cathode ( x in Li) and expect minimal lithium inventory loss (if any). The increasing polarization within the 15 C segment could arise from chemical build-up at the cathode/anode interfaces (CEI/SEI) or could be primarily driven by the concentration gradient within the electrolyte and mass transport limitations within the electrodes. − We note that this behavior was observed in multiple cells, and no cell lasted for longer than 100 cycles under the above test conditions. We also note that in our study, all tests were conducted at an operating temperature of 30 °C.…”

Recent Achievements on the Liquid Electrolytes for Fast‐Charging Lithium Metal Batteries

“…[44][45][46][47] In light of the significant achievements, several review articles have been published. [48][49][50][51][52][53][54][55] But there are rarely focused on liquid electrolytes toward fast-charging LMBs. This review first introduces how the electrolytes affect the fast-charging properties of LMBs and then summarizes the modifications of liquid electrolytes on LMBs in detail, including the Li salts, electrolyte additives, and novel solvents (Figure 1).…”