Researchers analyzing years of EV driving data discovered how differences between individual battery cells can intensify over time. An electric vehicle (EV) battery can reach the end of its useful...

Calcium metal batteries (CMBs) have emerged as a promising alternative to lithium(Li)-based technologies due to calcium's (Ca) low reduction potential, high volumetric capacity, and abundance. However...

Hydrogel electrolytes are pivotal for flexible zinc-ion batteries (ZIBs) yet suffer from an intrinsic trade-off between mechanical robustness and ionic conductivity. Herein, drawing inspiration from the “adhesion-conduction” architecture of spider webs, we developed a hierarchical hydrogel electrolyte (MTP) by incorporating tannic acid (TA)-modified MXene nanosheets (MT) into a polyacrylamide (PAM) skeleton to construct uniform 3D ion-conductive pathways. This bioinspired hierarchy serves a dual function: The PAM framework ensures mechanical integrity, while the MT network creates directed low-resistance channels for Zn2+ transport. Specifically, the dense array of polar groups on MXene and phenolic hydroxyls on TA act as “sticky sites”, which accelerate desolvation kinetics and homogenize Zn2+ flux. Consequently, the MTP electrolyte achieves an impressive ionic conductivity of 27.69 mS cm−1 and a high Zn2+ transference number of 0.833. Enabled by this design, Zn//Zn symmetric cells demonstrate an ultralong lifespan of 4600 h (> 6 months) at 0.5 mA cm−2/0.5 mAh cm−2. Furthermore, Zn//Z-VO full cells exhibit outstanding cyclability, retaining 74.5% capacity after 2000 cycles at 2 A g−1 and maintaining durable operation for over 10,000 cycles at 5 A g−1. This work successfully translates a biological blueprint into a practical strategy for resolving the kinetic and stability challenges in high-performance flexible ZIBs.

Unravelling the complex processes governing battery degradation is critical to the energy transition, yet the efficacy of operando characterisation is severely constrained by a lack of Reliability, Re...

Open-Source Battery Monitoring & Modeling Resources - shiyunliu-battery/Iontech

Using a Li metal anode, the all-solid-state battery (ASSB) promises a step change in specific energy over Li-ion batteries and the potential for incre…

Aqueous-hydrotrope hybrid liquid electrolyte solutions enable overcoming the electrochemical stability window and operational temperature limits of aqueous electrolyte solutions in secondary zinc-base...

Tailored non-aqueous electrolyte solutions are formulated using data obtained from extensive analytical measurements and analyses. These optimized electrolytes improve the cycling performance of singl...