Can the lithium ion battery life can be extended to add hydrogen element?

2022/04/08

  Author :Iflowpower – Portable Power Station Supplier

The researchers of the Raunns Rifo Moore National Laboratory (LLNL) found that the battery capacity can be greatly improved as long as the hydrogen element is added to the electrodes of the lithium-ion battery, which will extend the operating time and accelerate transmission operations. The lithium ion battery is a rechargeable battery type, and the lithium ion is moved from the battery to the positive electrode during the discharge, and the lithium ion of the positive electrode is moved back to the negative electrode during charging. The lithium ion battery is a rechargeable battery type, and the lithium ion is moved from the battery to the positive electrode during the discharge, and the lithium ion of the positive electrode is moved back to the negative electrode during charging.

Lithium ion batteries have several key characteristics, voltage, and energy density, the performance of these characteristics is ultimately determined by the combination of lithium ions and electrode materials. In the structure of the electrode, subtle changes in chemistry and shapes may significantly affect how lithium ions have strong bonded to their strong bonding. Through experiments and calculations, research inventors of the Livermore National Lab found that in a lithium-ion battery, the hydrogen-treated graphene foam electrode exhibits higher capacity and faster transmission capacity.

"These findings supply quality analysis, which helps to design high-power electrodes based on graphene material," LLNL material scientist Morriswang said. He is also one of the authors of this published in the Natural Science Report (NatureScientificReports Journal). Gallene materials in the commercial application of energy storage elements, including lithium-ion batteries and supercapacitors, seriously affecting its ability to produce this material with lower cost.

The commonly used chemical synthesis method will finally leave a large number of hydrogen atoms, which is difficult to determine the effects of electrochemical performance of graphene. Experiments in the Livermore Lab researchers have found that the hydrogen element deliberately improves the base temperature treatment of grain-rich graphene, which can actually improve the rate capacity. After the defects of the hydrogen element and the defects in graphene, the smaller pore is opened, which can promote lithium ions easier to penetrate, thereby improving transmission rate.

More cyclicable capacity can be supplied through a lithium ion attached to the new edge (most likely to adhere to the hydrogen element). "The performance improvement of the electrode is an important breakthrough, which can open more real world applications," said the postdoctoral researcher of the Livermore Laboratory Materials Science and the important author of the research papers said. In order to apply for the use of hydrogenation and hydrogenation defects in lithium ion storage properties of graphene, the researchers applied different heat treatment conditions exposed by the binding hydrogen element, focusing on the electrochemical properties of its 3D graphene nanofoam (GNF).

Composed of defective graphene. The researchers use 3D graphite nano foam because it has a variety of potential applications, including hydrogen storage, catalysis, filtration, insulation, energy absorption, capacitance desal, supercapacitors and lithium-ion batteries, etc. The characteristics of the graphene 3D foam non-adhesive adhesive can not be more complicated because the additive is more complicated, and thus can be used as an ideal choice for mechanism research.

"We found that after the treatment of hydrogen element, the graphite olee foam electrode has a significant progress. With the combination of this experiment, we will track the subtle interactions and progress between defects and hydrogen solutions. In response to the results of some small changes in graphene chemistry and morphology, it is possible to bring surprising significant effects in performance, "LLNL researchers also also have another author of this study" Brandonwood.

According to this study, this controlled hydrogen element treatment can also be used in other graphene-based anode materials to achieve optimized lithium ion transmission and recyclable storage applications.

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