Electrolytes Polymerization-Induced Cathode-Electrolyte-Interphase for High Voltage Lithium-Ion Batteries

Yang Jixiang; Liu Xiang; Wang Yian; Zhou Xinwei; Weng Lutao; Liu Yuzi; Ren Yang; Zhao Chen; Dahbi Mouad; Alami Jones; Abd Ei-Hady Deia; Xu Gui-Liang; Amine Khalil; Shao Minhua

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Electrolytes Polymerization-Induced Cathode-Electrolyte-Interphase for High Voltage Lithium-Ion Batteries

机译：电解聚合诱导的高压锂离子电池的阴极 - 电解质相互作用

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Lithium-ion batteries (LIBs) based on LiNixCoyMn1-x-yO2 (NCM) cathode materials have been widely commercialized, because of their high energy density, favorable rate performance, and relatively low cost. However, with increased Ni content to further increase their energy density, their cycling stability deteriorates dramatically and thus fails to meet the commercial application requirements. The artificial cathode-electrolyte-interphase (CEI) is a promising approach to solve this problem. Here, a robust CEI is fabricated through in situ polymerization of ethylene carbonate induced by aluminum isopropoxide (AIP). By adding 1 wt.% AIP in a commercial electrolyte, the capacity retention of LiNi0.8Co0.1Mn0.1O2||Li cell at 1 C rate has been significantly increased from 80.8% to 97.8% with a highly reversible capacity of 176 mA h g(-1) after 200 cycles. AIP can be also used as an additive during the slurry-making process, enabling a reversible capacity of 170 mA h g(-1) for LiCoO2 after 200 cycles even at a high charge cut-off voltage of 4.6 V. It is confirmed that the in situ formed CEI layer can prevent the cathodes from cracking and reduce the irreversible phase transformation.

机译：基于Linixcoymn1-X-YO2（NCM）阴极材料的锂离子电池（LIBS）已被广泛商业化，因为它们的能量密度高，速率性能良好，成本相对较低。然而，随着Ni含量的增加，进一步提高其能量密度，它们的循环稳定性显着恶化，因此不能满足商业应用要求。人工阴极电解质间（CEI）是一种解决这个问题的有希望的方法。这里，通过铝异丙醇氧化铝（AIP）诱导的碳酸亚乙酯的原位聚合来制造稳健的CEI。通过在商业电解质中加入1重量％AIP，LINI0.8CO0.1MN0.1O2 ||锂电池的容量保持在1℃的速率从80.8％显着增加到97.8％，具有高度可逆的容量为176 mA Hg （-1）200次循环后。 AIP也可以在淤浆制备过程中用作添加剂，即使在4.6V的高电荷截止电压下，也可以在200次循环之后为LiCoO2提供170 mA Hg（-1）的可逆容量。它被证实了原位形成的CEI层可以防止阴极裂化并减少不可逆的相变。

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来源
《Advanced energy materials》 |2021年第39期|2101956.1-2101956.11|共11页
作者
Yang Jixiang; Liu Xiang; Wang Yian; Zhou Xinwei; Weng Lutao; Liu Yuzi; Ren Yang; Zhao Chen; Dahbi Mouad; Alami Jones; Abd Ei-Hady Deia; Xu Gui-Liang; Amine Khalil; Shao Minhua;
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Hong Kong Univ Sci & Technol Dept Chem & Biol Engn Kowloon Clear Water Bay Hong Kong Peoples R China;

Argonne Natl Lab Chem Sci & Engn Div Lemont IL 60439 USA;

Hong Kong Univ Sci & Technol Dept Chem & Biol Engn Kowloon Clear Water Bay Hong Kong Peoples R China;

Argonne Natl Lab Ctr Nanoscale Mat Lemont IL 60439 USA;

Hong Kong Univ Sci & Technol Mat Characterizat & Preparat Facil Kowloon Clear Water Bay Hong Kong Peoples R China;

Argonne Natl Lab Ctr Nanoscale Mat Lemont IL 60439 USA;

Argonne Natl Lab Adv Photon Source Lemont IL 60439 USA;

Argonne Natl Lab Chem Sci & Engn Div Lemont IL 60439 USA;

Mohammed VI Polytech Univ Mat Sci & Nanoengn Dept Ben Guerir 434150 Morocco;

Mohammed VI Polytech Univ Mat Sci & Nanoengn Dept Ben Guerir 434150 Morocco;

Univ Jeddah Fac Sci Chem Dept Jeddah 21589 Saudi Arabia;

Argonne Natl Lab Chem Sci & Engn Div Lemont IL 60439 USA;

Argonne Natl Lab Chem Sci & Engn Div Lemont IL 60439 USA|Stanford Univ Dept Mat Sci & Engn Stanford CA 94305 USA;

Hong Kong Univ Sci & Technol Dept Chem & Biol Engn Kowloon Clear Water Bay Hong Kong Peoples R China;

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关键词
aluminum isopropoxide; cathode-electrolyte-interphase; electrolyte additives; high voltage; layered oxide cathode;

机译：铝异丙氧化物;阴极电解质间;电解质添加剂;高压;层状氧化物阴极;

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专利

1. Cathode-Electrolyte-Interphase Film Formation on a LiNiO_2 Surface in Conventional Aqueous Electrolytes: Simple Method to Improve the Electrochemical Performance of LiNiO_2 Electrodes for Use in Aqueous Li-Ion Batteries [J] . Lee Changhee, Yokoyama Yuko, Kondo Yasuyuki, Advanced energy materials . 2021,第25期

机译：在常规水溶液中LINIO_2表面上的阴极电解质间膜：改善LINIO_2电极的电化学性能的简单方法，用于锂离子电池水溶液
2. (Phenylsulfonyl)acetonitrile as a High-Voltage Electrolyte Additive to Form a Sulfide Solid Electrolyte Interface Film to Improve the Performance of Lithium-Ion Batteries [J] . Deng Xiao, Zuo Xiaoxi, Liang Huiyin, The journal of physical chemistry, C. Nanomaterials and interfaces . 2019,第19期

机译：（苯磺酰基）乙腈作为高压电解质添加剂，形成硫化物固体电解质界面膜，以提高锂离子电池的性能
3. Mechanistic Study of Electrolyte Additives to Stabilize High-Voltage Cathode-Electrolyte Interface in Lithium-Ion Batteries [J] . Gao Han, Maglia Filippo, Lamp Peter, ACS applied materials & interfaces . 2017,第51期

机译：电解质添加剂稳定高压阴极 - 电解质界面锂离子电池的机械研究
4. Ether-Based Electrolytes Enabling Long-Stability High-Voltage Lithium-Ion Batteries [C] . Hao Jia, Xianhui Zhang, Yaobin Xu, Pacific Rim Meeting on Electrochemical and Solid-State Science . 2020

机译：基于醚的电解质，实现长稳定性高压锂离子电池
5. Electrochemical studies of lithium-ion battery anode materials in lithium-ion battery electrolytes. [D] . Zhao, Mingchuan. 2001

机译：锂离子电池电解质中锂离子电池负极材料的电化学研究。
6. Superconcentrated electrolytes for a high-voltage lithium-ion battery [O] . Jianhui Wang, Yuki Yamada, Keitaro Sodeyama, -1

机译：高压锂离子电池用超浓缩电解质
7. Deep Eutectic Solvent Based on Lithium Bis(trifluoromethyl)sulfonyl Imide (LiTFSI) and 2,2,2-Trifluoroacetamide (TFA) as a Promising Electrolyte for a High Voltage Lithium-Ion Battery with a LiMn2O4 Cathode [O] . Thai T. A. Dinh, Tuyen T. K. Huynh, Linh T. M. Le, 2020

机译：基于BIS （三氟甲基）磺酰基酰亚胺（LITFSI）和2,2,2-三氟乙酰胺（TFA）的深度共晶溶剂作为具有LIMN2O4阴极的高压锂离子电池的有希望的电解质

Electrolytes Polymerization-Induced Cathode-Electrolyte-Interphase for High Voltage Lithium-Ion Batteries

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