Initial Coulombic Efficiency News Today

The initial Coulombic efficiency (ICE) of electrode materials is closely related to the energy density of lithium-ion batteries (LIBs). However, some promising electrode materials for next generation LIBs suffer from low ICE, which inevitably hinders their practical application. Among the discovered modified strategies for LIBs, electrolyte optimization has attracted extensive attention due to its facile operation process. Herein, the role of ICE in LIBs is first analyzed. Subsequently, the rece...

Given the merits of affordable cost, superior low-temperature performance, and advanced safe properties, sodium-ion batteries (SIBs) have exhibited great development potential in large scale energy storage applications. Among various emerging carbonaceous anode materials applied for SIBs, hard carbon (HC) has recently gained significant attention regarding their relatively low cost, wide availability, and optimal overall performance. However, the insufficient initial Coulombic efficiency (ICE) o...

Sodium-ion batteries show promising potential for large-scale energy storage. However, the large size and heavy mass of Na+ always results in huge volume change and inferior electrochemical stability, especially in alloy-type anode materials. Here, molecular engineering of the polymer binders, i.e., cross-linking of poly(acrylic acid) with glycerin (PAA-GLY), reinforces the mechanical properties, eliminates the active protons of PAA, and benefits electrolyte diffusion, thereby remarkably improvi...

AZoCleantech speaks to Vincent Pluvinage, CEO and co-founder of OneD Battery Sciences, about SINANODE, an innovative technology set to make electric vehicles more cost-effective and with longer ranges.

OneD Battery Sciences is introducing its SINANODE process. SINANODE seamlessly integrates into existing manufacturing processes to fuse silicon nanowires onto commercial graphite powders, tripling the energy density of the anode while halving its cost per kWh, according to the company. The higher energy density increases battery range while nanowires shorten...

Abstract High initial coulombic efficiency is highly desired because it implies effective interface construction and few electrolyte consumption, indicating enhanced batteries’ life and power output. In this work, a high-capacity sodium storage material with FeS nanoclusters (≈1–2 nm) embedded in N, S-doped carbon matrix (FeS /N,S-C) was synthesized, the surface of which displays defects-repaired characteristic and detectable dot-matrix distributed Fe-N-C/Fe-S-C bonds. After the initial ...