Review of the Design of Current Collectors for Improving the Battery Performance in Lithium-Ion and Post-Lithium-Ion Batteries

Abstract

Current collectors (CCs) are an important and indispensable constituent of lithium-ion batteries (LIBs) and other batteries. CCs serve a vital bridge function in supporting active materials such as cathode and anode materials, binders, and conductive additives, as well as electrochemically connecting the overall structure of anodes and cathodes with an external circuit. Recently, various factors of CCs such as the thickness, hardness, compositions, coating layers, and structures have been modified to improve aspects of battery performance such as the charge/discharge cyclability, energy density, and the rate performance of a cell. In this paper, the details of interesting and useful attempts of preparing CCs for high battery performance in lithium-ion and post-lithium-ion batteries are reviewed. The advantages and disadvantages of these attempts are discussed.

Future Material Developments for Electric Vehicle Battery Cells Answering Growing Demands from an End-User Perspective

“…Carbon-coated CCs are currently used in the mass production of LIBs because of their high performance and low cost. However, thinner CCs will help to increase energy density, and 3D CCs will improve the current response and cycle life at the cell level [174]. Cell production considering electrodes, separator and electrolyte have mainly two bottlenecks: electrolyte filling and battery formation.…”

A review of current collectors for lithium-ion batteries

“…Many efforts have been made in reviewing cathodes, anodes, electrolytes and separators of LIBs. However, to our knowledge, few reviews on current collectors have so far been published and these only review limited materials or structures [17,18]. This brings us to the need for a more comprehensive review of current collectors.…”

Review on carbonaceous materials and metal composites in deformable electrodes for flexible lithium-ion batteries

“…Over the past decade, carbonaceous materials (CMs) and metals have attracted researchers' attention due to their abundant sources, high conductivity, structural stability, and suitable mechanical strength. [8][9][10] Also, CMs have a large specic surface area, a low rate of resistance rising, and greater energy density with good structural stability aer mechanical exion, and metals excellent electrical conductivity.…”