B-/Si-containing electrolyte additive efficiently establish a stable interface for high-voltage LiCoO2 cathode and its synergistic effect on LiCoO2/graphite pouch cells

Lin, Xiaoyan; Zeng, Fanghong; Lin, Jialuo; Zhang, Wenguang; Zhou, Xianggui; Quan, Lijiao; Yang, Shu; He, Jiarong; Xing, Lidan; Li, Weishan

doi:10.1016/j.jcis.2023.03.156

Cited by 11 publications

(10 citation statements)

References 35 publications

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“…The C–C peak (284.8 eV) in the C 1s spectrum and the Me–O signal peak (529.5 eV) in O 1s correspond to conductive carbon black and NCM811 in the cathode. 43,44 The cathode surface with PMBS had higher intensity C–C and Me–O signal peaks. This is because a thinner CEI film was formed in the electrolyte containing PMBS compared to the blank electrolyte.…”

Section: Resultsmentioning

confidence: 99%

A functional electrolyte containing propyl 4-methylbenzene sulfonate (PMBS) additive to improve the cycling performance of the LiNi_0.8Co_0.1Mn_0.1O₂/graphite full cell under the low temperature of −10 °C

Li,

Cai,

Liao

et al. 2023

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 99%

A functional electrolyte containing propyl 4-methylbenzene sulfonate (PMBS) additive to improve the cycling performance of the LiNi_0.8Co_0.1Mn_0.1O₂/graphite full cell under the low temperature of −10 °C

Li,

Cai,

Liao

et al. 2023

J. Mater. Chem. A

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“…Acetone (dielectric constant = 20.5) was used to account for the solvation effect instead of carbonate electrolytes. 25…”

Section: Methodsmentioning

confidence: 99%

“…The geometric structures of the electrolyte solvents and PMBPDS were all optimized in the polarized continuum model (PCM) with the B3LYP/cc-pvdz level of the Gaussian 09 package by density functional theory (DFT) study. Acetone (dielectric constant = 20.5) was used to account for the solvation effect instead of carbonate electrolytes …”

Section: Experimental Sectionmentioning

confidence: 99%

Borate-Functionalized Disiloxane as Effective Electrolyte Additive for 4.5 V LiNi_0.8Co_0.1Mn_0.1O₂/Graphite Batteries

Chen,

Guo,

et al. 2024

ACS Appl. Mater. Interfaces

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Ni-rich LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) is considered the most prominent cathode material to establish a practical high energy density of lithiumion batteries (LIBs) for future electric vehicles. The energy density of LIBs is greatly determined by the capacity of electrode materials and the operating voltage of the cells. To further improve the cycle lifespan of NCM811 batteries to meet the requirement of driving range for the electric vehicle market, it is vital to design a novel electrolyte additive that can enhance the stability of the cathode/ electrolyte interface at a wide range of voltage. Herein, a novel borate functionalized disiloxane compound, 1,1,1,3,3-pentamethyl-3-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)propyl) disiloxane (PMBPDS), is synthesized as cathode electrolyte interphase (CEI) film-forming additive to improve the cycling performance of NCM811 batteries. Systematic studies reveal that PMBPDS can construct a stable CEI film on the NCM811 surface and efficiently scavenge hydrofluoric acid (HF). The PMBPDS-derived CEI prevents the dissolution of transmission metals in the NCM811 cathode and enhances the capacity retention of NCM811/graphite cells from 68.3 to 70.6% after 200 cycles at 1 C in the voltage window of 3−4.5 V. This work provides more understanding on designing the molecular structure of additive compounds for improving the electrochemical performance of LIBs. KEYWORDS: LiNi 0.8 Co 0.1 Mn 0.1 O 2 , borate functionalization, disiloxane, electrolyte additive, cycle life

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“…Xing et al. [ 129 ] used another siloxane additive to establish a stable B‐/Si‐containing CEI. The capacity retention of the LCO/graphite pouch call was enhanced from 10.44% to 76.13% after 1%3‐(tert‐butyldimethylsilyloxy)phenylboronic acid (TBPB) was added at 4.5 V after 400 cycles.…”

Section: High‐voltage Electrolyte Additivesmentioning

confidence: 99%

Critical Problems and Modification Strategies of Realizing High‐Voltage LiCoO₂ Cathode from Electrolyte Engineering

Sun,

Zhao,

Zhu

et al. 2023

Advanced Energy Materials

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As the pursuit of greater energy density for the portable battery has stimulated exhaustive research in high‐voltage lithium‐ion batteries (LIBs), developing electrolyte additives is considered a cost‐efficient way to improve the performance of the battery. Here, the three interactional issues of LiCoO2 (LCO) batteries in commercial electrolytes at high voltage are summarized, this review first identifies an unavoidable vicious cycle of the commercial electrolyte at high voltage. LCO/electrolyte interphase break, dissolution of transition metal (TM) ions, and formation of harmful HF accelerate the failing progress of the commercial electrolyte at high voltage, besides the malfunction of anode happens at the same time because of electrode crosstalk. Then, the modification of the commercial electrolyte is summarized according to the solutions of this vicious cycle. Last, a framework for future research on high‐voltage LCO batteries is outlined.

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B-/Si-containing electrolyte additive efficiently establish a stable interface for high-voltage LiCoO2 cathode and its synergistic effect on LiCoO2/graphite pouch cells

Cited by 11 publications

References 35 publications

A functional electrolyte containing propyl 4-methylbenzene sulfonate (PMBS) additive to improve the cycling performance of the LiNi_0.8Co_0.1Mn_0.1O₂/graphite full cell under the low temperature of −10 °C

A functional electrolyte containing propyl 4-methylbenzene sulfonate (PMBS) additive to improve the cycling performance of the LiNi_0.8Co_0.1Mn_0.1O₂/graphite full cell under the low temperature of −10 °C

Borate-Functionalized Disiloxane as Effective Electrolyte Additive for 4.5 V LiNi_0.8Co_0.1Mn_0.1O₂/Graphite Batteries

Critical Problems and Modification Strategies of Realizing High‐Voltage LiCoO₂ Cathode from Electrolyte Engineering

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B-/Si-containing electrolyte additive efficiently establish a stable interface for high-voltage LiCoO2 cathode and its synergistic effect on LiCoO2/graphite pouch cells

Cited by 11 publications

References 35 publications

A functional electrolyte containing propyl 4-methylbenzene sulfonate (PMBS) additive to improve the cycling performance of the LiNi0.8Co0.1Mn0.1O2/graphite full cell under the low temperature of −10 °C

A functional electrolyte containing propyl 4-methylbenzene sulfonate (PMBS) additive to improve the cycling performance of the LiNi0.8Co0.1Mn0.1O2/graphite full cell under the low temperature of −10 °C

Borate-Functionalized Disiloxane as Effective Electrolyte Additive for 4.5 V LiNi0.8Co0.1Mn0.1O2/Graphite Batteries

Critical Problems and Modification Strategies of Realizing High‐Voltage LiCoO2 Cathode from Electrolyte Engineering

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A functional electrolyte containing propyl 4-methylbenzene sulfonate (PMBS) additive to improve the cycling performance of the LiNi_0.8Co_0.1Mn_0.1O₂/graphite full cell under the low temperature of −10 °C

A functional electrolyte containing propyl 4-methylbenzene sulfonate (PMBS) additive to improve the cycling performance of the LiNi_0.8Co_0.1Mn_0.1O₂/graphite full cell under the low temperature of −10 °C

Borate-Functionalized Disiloxane as Effective Electrolyte Additive for 4.5 V LiNi_0.8Co_0.1Mn_0.1O₂/Graphite Batteries

Critical Problems and Modification Strategies of Realizing High‐Voltage LiCoO₂ Cathode from Electrolyte Engineering