To conquer the instability of clean energy, developing high performance energy storage devices is vital importance. Among them, metal-based battery (such as Metal-air batteries and metal-sulfur batteries) exhibited potential for application due to their low lost density. The rational design electrode materials (catalysts) plays an important role in improving efficacy metal based promoting devel...

Abstract The lithiated covalent organic framework (named TpPa-SO 3 Li), which was prepared by a mild chemical lithiation strategy, introduced in poly(ethylene oxide) (PEO) to produce the composite polymer electrolytes (CPEs). Li-ion can transfer along PEO chain or across layer of Li within nanochannels, resulting high conductivity 3.01 × 10 ?4 S/cm at 60 °C. When CPE with 0.75 wt.% used LiFePO ...

The entropy changes ( S) in various cathode and anodematerials, as well as in complete Li-ion batteries, were measured using an electrochemical thermodynamic measurement system (ETMS). LiCoO2 has a much larger entropy change than electrodes based on LiNixCoyMnzO2 and LiFePO4, while lithium titanate based anodes have lower entropy change compared to graphite anodes. The reversible heat generatio...

In this study, two battery models for a high-power lithium ion (Li-Ion) cell were compared for their use in hybrid electric vehicle simulations in support of the U.S. Department of Energy’s Hybrid Electric Vehicle Program. Saft America developed the high-power Li-Ion cells as part of the U.S. Advanced Battery Consortium/U.S. Partnership for a New Generation of Vehicles programs. Based on test d...

Abstract Fast Li‐ion conductivity at room temperature is a major challenge for utilization of all‐solid‐state Li batteries. Metal borohydrides with neutral ligands are new emerging class solid‐state ionic conductors, and here we report the discovery mono‐methylamine lithium borohydride very fast + temperature. LiBH 4 ⋅CH 3 NH 2 crystallizes in monoclinic space group P 1 / c , forming two‐dimens...

Safety problem is always a big obstacle for lithium battery marching to large scale application. However, the knowledge on the battery combustion behavior is limited. To investigate the combustion behavior of large scale lithium battery, three 50 Ah Li(Ni(x)Co(y)Mn(z))O2/Li(4)Ti(5)O(12) batteries under different state of charge (SOC) were heated to fire. The flame size variation is depicted to ...

The microstructures and properties of the carbonaceous matrices in the cathodes of lithium-sulfur (Li-S) batteries have strong effects on their performances. We prepared a ternary composite cathode of mildly reduced less defective graphene oxide (mrLGO), sulfur, and carbon nanotubes (CNTs) by filtration for Li-S batteries. This battery showed a high initial specific capacity of 1219 mA h g(-1) ...

nt matter & 2013 0.1016/j.nanoen.2 thor. Tel.: +1 301 . [email protected] ( Abstract This work demonstrates the effect of atomic layer deposited (ALD) Al2O3 on the reactivation of dissolved polysulfides in Li–S batteries. A 0.5 nm thick layer of Al2O3 is conformally coated onto highly porous carbon cloth by ALD, and then assembled in a Li–S battery between the sulfur cathode and the anode side (sep...

The high theoretical gravimetric capacity of the Li-S battery system makes it an attractive candidate for numerous energy storage applications. In practice, cell performance is plagued by low practical capacity and poor cycling. In an effort to explore the mechanism of the discharge with the goal of better understanding performance, we examine the Li-S phase diagram using computational techniqu...

Highly stable sulfur/microporous carbon (S/MC) composites are prepared by vacuum infusion of sulfur vapor into microporous carbon at 600 °C, and lithium sulfide/microporous carbon (Li2S/MC) cathodes are fabricated via a novel and facile in situ lithiation strategy, i.e., spraying commercial stabilized lithium metal powder (SLMP) onto a prepared S/MC film cathode prior to the routine compressing...