Silica-nanoresin crosslinked composite polymer electrolyte for ambient-temperature all-solid-state lithium batteries

Kuai, Yixi; Wang, Feifei; Yang, Jun; Lu, Huiqing; Xu, Zhixin; Xu, Xiaochuan; Nuli, Yanna; Wang, Jiulin

doi:10.1039/d1qm00769f

Cited by 26 publications

(18 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We selected poly(vinyl ethylene carbonate) (PVEC) as a conventional polymer electrolyte due to its higher voltage stability (4.5 V) and ionic conductivity (10 −3 S cm −1 ) than PEO-based systems (10 −5 S cm −1 ) under ambient conditions. 35,36 In contrast to previously reported polymer electrolyte-based LMBs that only work at low current density (≤1 mA cm −2 ) and relatively high temperatures (usually ≥60 °C), Li/PVEC/Li symmetric cells with the SIPPI perform well at high current density, i.e., up to 3 mA cm −2 , and ambient temperature, i.e., 25 °C. Moreover, Li/PVEC/LiFePO 4 (LFP) cells with the SIPPI exhibit stable cycling performance with a capacity retention of 85.6% after 1000 cycles at 1 C and excellent rate performance with a retention capacity of 95.8 mAh g −1 at 3 C (1 C = 170 mAh g −1 ).…”

Section: ■ Introductionmentioning

confidence: 72%

Single-Ion Conducting Polymeric Protective Interlayer for Stable Solid Lithium-Metal Batteries

Shan

Zhao

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

With many reported attempts on fabricating single-ion conducting polymer electrolytes, they still suffer from low ionic conductivity, narrow voltage window, and high cost. Herein, we report an unprecedented approach on improving the cationic transport number (t Li +) of the polymer electrolyte, i.e., single-ion conducting polymeric protective interlayer (SIPPI), which is designed between the conventional polymer electrolyte (PVEC) and Li-metal electrode. Satisfied ionic conductivity (1 mS cm–1, 30 °C), high t Li + (0.79), and wide-area voltage stability are realized by coupling the SIPPI with the PVEC electrolyte. Benefiting from this unique design, the Li symmetrical cell with the SIPPI shows stable cycling over 6000 h at 3 mA cm–2, and the full cell with the SIPPI exhibits stable cycling performance with a capacity retention of 86% over 1000 cycles at 1 C and 25 °C. This incorporated SIPPI on the Li anode presents an alternative strategy for enabling high-energy density, long cycling lifetime, and safe and cost-effective solid-state batteries.

show abstract

Section: ■ Introductionmentioning

confidence: 72%

Single-Ion Conducting Polymeric Protective Interlayer for Stable Solid Lithium-Metal Batteries

Shan

Zhao

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…[155] A higher oxidative stability of PVECbased electrolytes-up to ca. 5.0 V versus Li/Li + -was achieved by adding SiO 2 nanoparticles, [156,157] by copolymerizing VEC with fluorinated comonomers, [158] or by ring-opening polymerization in presence of tin(II) 2-ethylhexanoate. [159] Additional polymer hosts (PAN, PMMA, PVdF, polymerized ionic liquids) were primarily used in GPEs and plasticized SPEs.…”

Section: Alternative Polymer Hostsmentioning

confidence: 99%

“…[ 155 ] A higher oxidative stability of PVEC‐based electrolytes—up to ca. 5.0 V versus Li/Li + —was achieved by adding SiO 2 nanoparticles, [ 156,157 ] by copolymerizing VEC with fluorinated comonomers, [ 158 ] or by ring‐opening polymerization in presence of tin(II) 2‐ethylhexanoate. [ 159 ]…”

Section: Chemical and Electrochemical Stability Of Hvlp Cellsmentioning

confidence: 99%

Are Polymer‐Based Electrolytes Ready for High‐Voltage Lithium Battery Applications? An Overview of Degradation Mechanisms and Battery Performance

Martínez

Boaretto

Naylor

et al. 2022

Advanced Energy Materials

121

View full text Add to dashboard Cite

High‐voltage lithium polymer cells are considered an attractive technology that could out‐perform commercial lithium‐ion batteries in terms of safety, processability, and energy density. Although significant progress has been achieved in the development of polymer electrolytes for high‐voltage applications (> 4 V), the cell performance containing these materials still encounters certain challenges. One of the major limitations is posed by poor cyclability, which is affected by the low oxidative stability of standard polyether‐based polymer electrolytes. In addition, the high reactivity and structural instability of certain common high‐voltage cathode chemistries further aggravate the challenges. In this review, the oxidative stability of polymer electrolytes is comprehensively discussed, along with the key sources of cell degradation, and provides an overview of the fundamental strategies adopted for enhancing their cyclability. In this regard, a statistical analysis of the cell performance is provided by analyzing 186 publications reported in the last 17 years, to demonstrate the gap between the state‐of‐the‐art and the requirements for high‐energy density cells. Furthermore, the essential characterization techniques employed in prior research investigating the degradation of these systems are discussed to highlight their prospects and limitations. Based on the derived conclusions, new targets and guidelines are proposed for further research.

show abstract

“…The VEC-based HTPE exhibits high voltage stability and fast Li + transport. 36 With an anodic stability of higher than 5 V vs Li/Li + , it can be coupled with a high-voltage cathode such as Li-Ni 0.65 Co 0.15 Mn 0.2 O 2 (NCM). From an investigation of the experimental results, the obtained HTPE can efficiently suppress the Li 0 -dendrite growth, affording a prolonged cycling lifetime, superior to those of most of the conventional polymer electrolytes.…”

mentioning

confidence: 99%

“…Compared with previously reported polymer electrolytes that only work at low current density (≤1 mA cm –2 ) and relatively high temperatures (mostly ≥60 °C), such a high t Li + polymer electrolyte performs well at an ultrahigh current density: i.e., up to 10 mA cm –2 at 25 °C or even 5 °C. The VEC-based HTPE exhibits high voltage stability and fast Li + transport . With an anodic stability of higher than 5 V vs Li/Li + , it can be coupled with a high-voltage cathode such as LiNi 0.65 Co 0.15 Mn 0.2 O 2 (NCM).…”

mentioning

confidence: 99%

A Polymer Electrolyte with High Cationic Transport Number for Safe and Stable Solid Li-Metal Batteries

Shan

Morey

et al. 2022

ACS Energy Lett.

View full text Add to dashboard Cite

The strategies for achieving a high cationic transport polymer electrolyte (HTPE) have mostly focused on developing single-ion conducting polymer electrolytes, which is far from being practical due to sluggish ion transport. Herein, we present an unprecedented approach on designing an HTPE via in situ copolymerization of regular ionic conducting and single-ion conducting monomers in the presence of a lithium salt. The HTPE, i.e., poly(VEC10-r-LiSTFSI), exhibits a combination of impressive properties, including high cationic transport number (0.73), high ionic conductivity (1.60 mS cm–1), tolerance of high current density (10 mA cm–2), and high anodic stability (5 V). A lithium-metal battery constructed with the developed HTPE retains 70% capacity after 1200 cycles at 1 C, and it also operates in a wide temperature range and with a high mass loading of the cathode. Advanced characterizations and computations reveal that the high t Li+ and high ionic conductivity effectively suppress Li0-dendrite growth by circumventing concentration polarizations that plague most polymer electrolytes.

show abstract

Silica-nanoresin crosslinked composite polymer electrolyte for ambient-temperature all-solid-state lithium batteries

Abstract: All-solid-state lithium batteries (ASSLBs) are in urgent demand for future energy storage. The basic problems are, however, low ambient-temperature ionic conductivity and narrow electrochemical windows of solid electrolytes as well...

Cited by 26 publications

References 42 publications

Single-Ion Conducting Polymeric Protective Interlayer for Stable Solid Lithium-Metal Batteries

Single-Ion Conducting Polymeric Protective Interlayer for Stable Solid Lithium-Metal Batteries

Are Polymer‐Based Electrolytes Ready for High‐Voltage Lithium Battery Applications? An Overview of Degradation Mechanisms and Battery Performance

A Polymer Electrolyte with High Cationic Transport Number for Safe and Stable Solid Li-Metal Batteries

Contact Info

Product

Resources

About