一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

ChemicalBook >> journal list >> ACS Applied Energy Materials >>article
ACS Applied Energy Materials

ACS Applied Energy Materials

IF: 5.4
Download PDF

Lithium Tetrafluoroborate-Based Ester Electrolyte Formulations to Improve the Operating Temperature Range in NCM 622 || Graphite Li-Ion Batteries

Published:1 May 2023 DOI: 10.1021/acsaem.3c00261
Chamithri Jayawardana, Nuwanthi D. Rodrigo, Munaiah Yeddala, Bo Nan, Leah Rynearson, Chunsheng Wang and Brett L. Lucht*, 

Abstract

The use of alternative lithium salts, lithium tetrafluoroborate (LiBF4), lithium difluoro(oxalato)borate, and lithium hexafluorophosphate (LiPF6), in the ester/fluoroethylene carbonate electrolyte results in improved low-temperature performance at ?20 °C compared to LiPF6 in a carbonate-based electrolyte, but the room-temperature performance of the ester-based formulation has significant capacity fade due to the instability of the solid electrolyte interphase (SEI). Incorporation of electrolyte additives, lithium bis(oxalato)borate, lithium difluorophosphate, and lithium bis(trimethylsilyl) phosphate (LiTMSP), into lithium tetrafluoroborate (LiBF4) ester-based electrolytes (methyl acetate/fluoroethylene carbonate-MA/FEC) has been investigated in graphite//LiNi0.6Co0.2Mn0.2O2 cells to improve room-temperature cycling stability without diminishing low-temperature rate performance. The LiBF4-based ester electrolyte containing 1% LiTMSP delivers the highest reversible capacity at low temperature (?20 °C), while the room-temperature performance is significantly improved compared to that of the base ester-based electrolyte (LiBF4-MA) and almost comparable to that of the standard carbonate-based electrolyte. The improved electrochemical performance for 1% LiTMSP at ?20 °C is due to the lower charge transfer resistance as supported by electrochemical impedance spectroscopy, and improved room-temperature performance can be ascribed to the generation of a stable phosphate-rich SEI on the graphite surface as revealed by X-ray photoelectron spectroscopy.

Substances (13)

Related products
Procduct Name CAS Molecular Formula Supplier Price
Methyl acetate 79-20-9 C3H6O2 662 suppliers $7.62-$1334.03
Graphite 7782-42-5 C 465 suppliers $10.00-$1742.00
Fluoroethylene carbonate 114435-02-8 C3H3FO3 462 suppliers $5.00-$1330.00
Lithium hexafluorophosphate 21324-40-3 F6LiP 433 suppliers $6.00-$2730.00
Lithium tetrafluoroborate 14283-07-9 BF4Li 399 suppliers $6.00-$14970.00
Lithium bis(oxalate)borate 244761-29-3 C4BLiO8 279 suppliers $7.00-$2200.00
Lithium difluoro(oxalato)borate(1-) 409071-16-5 C2BF2O4.Li 243 suppliers $5.00-$2000.00
Lithium Difluorophosphate 24389-25-1 F2H2LiO2P 175 suppliers Inquiry
Lithium cobalt phosphate 13824-63-0 CoLiO4P 26 suppliers $189.00-$1234.58
phosphate 264888-19-9 O4P-3 13 suppliers Inquiry

Similar articles

IF:4.8

Exploring Trimethyl-Phosphate-Based Electrolytes without a Carbonyl Group for Li-Rich Layered Oxide Positive Electrodes in Lithium-Ion Batteries

The Journal of Physical Chemistry Letters Zezhao Liu, Zhishan Liu,etc Published: 1 December 2022
IF:4.7

Preparation and characterization of lithium hexafluorophosphate for lithium-ion battery electrolyte

Transactions of Nonferrous Metals Society of China Jian-wen LIU, Xin-hai LI,etc Published: 1 February 2010
会昌县| 安新县| 潼关县| 阳山县| 栖霞市| 林州市| 关岭| 东安县| 大邑县| 九台市| 泾阳县| 柏乡县| 会昌县| 汝州市| 县级市| 仁化县| 泾川县| 黄浦区| 遂昌县| 西华县| 淮滨县| 伊宁县| 乐都县| 健康| 内丘县| 宁河县| 达日县| 尼玛县| 定日县| 南平市| 固原市| 汕尾市| 安平县| 上杭县| 元朗区| 滨海县| 图木舒克市| 会泽县| 迁安市| 望江县| 留坝县|