Low-Cost Hollow Mesoporous Polymer Spheres and All-Solid-State Lithium, Sodium Batteries

Weidong Zhou; Hongcai Gao; John B. Goodenough

doi:10.1002/aenm.201501802

Low-Cost Hollow Mesoporous Polymer Spheres and All-Solid-State Lithium, Sodium Batteries

Weidong Zhou, Hongcai Gao, John B. Goodenough^*

^*Corresponding author for this work

University of Texas at Austin

Research output: Contribution to journal › Article › peer-review

148 Citations (Scopus)

Abstract

A practical, low-cost synthesis of hollow mesoporous organic polymer (HMOP) spheres is reported. The electrochemical properties of Li⁺/Na⁺-electrolyte membranes with these spheres substituting for oxide filler particles in poly(ethylene oxide) (PEO)-filler composite are explored. The electrolyte membranes are mechanically robust, thermally stable to over 250 °C, and block dendrites from a metallic-lithium/sodium anode. The Li⁺/Na⁺ transfer impedance across the lithium/sodium-electrolyte interface is initially acceptable at 65 °C and scavenging of impurities by the porous-spheres filler lowers this impedance relative to that with Al₂O₃. All-solid-state Li/LiFePO₄ and Na/NaTi₂(PO4)₃ cells give stable discharge capacity of ≈130 and 80 mAh g^-1, respectively, at 0.5 C and 65 °C for 100 cycles.

Original language	English
Article number	1501802
Journal	Advanced Energy Materials
Volume	6
Issue number	1
DOIs	https://doi.org/10.1002/aenm.201501802
Publication status	Published - 7 Jan 2016
Externally published	Yes

Keywords

hollow polymer spheres
lithium/sodium ions batteries
solid state electrolytes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/aenm.201501802

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Zhou, W., Gao, H., & Goodenough, J. B. (2016). Low-Cost Hollow Mesoporous Polymer Spheres and All-Solid-State Lithium, Sodium Batteries. Advanced Energy Materials, 6(1), Article 1501802. https://doi.org/10.1002/aenm.201501802

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abstract = "A practical, low-cost synthesis of hollow mesoporous organic polymer (HMOP) spheres is reported. The electrochemical properties of Li+/Na+-electrolyte membranes with these spheres substituting for oxide filler particles in poly(ethylene oxide) (PEO)-filler composite are explored. The electrolyte membranes are mechanically robust, thermally stable to over 250 °C, and block dendrites from a metallic-lithium/sodium anode. The Li+/Na+ transfer impedance across the lithium/sodium-electrolyte interface is initially acceptable at 65 °C and scavenging of impurities by the porous-spheres filler lowers this impedance relative to that with Al2O3. All-solid-state Li/LiFePO4 and Na/NaTi2(PO4)3 cells give stable discharge capacity of ≈130 and 80 mAh g-1, respectively, at 0.5 C and 65 °C for 100 cycles.",

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PY - 2016/1/7

Y1 - 2016/1/7

N2 - A practical, low-cost synthesis of hollow mesoporous organic polymer (HMOP) spheres is reported. The electrochemical properties of Li+/Na+-electrolyte membranes with these spheres substituting for oxide filler particles in poly(ethylene oxide) (PEO)-filler composite are explored. The electrolyte membranes are mechanically robust, thermally stable to over 250 °C, and block dendrites from a metallic-lithium/sodium anode. The Li+/Na+ transfer impedance across the lithium/sodium-electrolyte interface is initially acceptable at 65 °C and scavenging of impurities by the porous-spheres filler lowers this impedance relative to that with Al2O3. All-solid-state Li/LiFePO4 and Na/NaTi2(PO4)3 cells give stable discharge capacity of ≈130 and 80 mAh g-1, respectively, at 0.5 C and 65 °C for 100 cycles.

AB - A practical, low-cost synthesis of hollow mesoporous organic polymer (HMOP) spheres is reported. The electrochemical properties of Li+/Na+-electrolyte membranes with these spheres substituting for oxide filler particles in poly(ethylene oxide) (PEO)-filler composite are explored. The electrolyte membranes are mechanically robust, thermally stable to over 250 °C, and block dendrites from a metallic-lithium/sodium anode. The Li+/Na+ transfer impedance across the lithium/sodium-electrolyte interface is initially acceptable at 65 °C and scavenging of impurities by the porous-spheres filler lowers this impedance relative to that with Al2O3. All-solid-state Li/LiFePO4 and Na/NaTi2(PO4)3 cells give stable discharge capacity of ≈130 and 80 mAh g-1, respectively, at 0.5 C and 65 °C for 100 cycles.

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Low-Cost Hollow Mesoporous Polymer Spheres and All-Solid-State Lithium, Sodium Batteries

Abstract

Keywords

UN SDGs

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