High‐Rate and Large‐Capacity Lithium Metal Anode Enabled by Volume Conformal and Self‐Healable Composite Polymer Electrolyte
Abstract The widespread implementation of lithium‐metal batteries (LMBs) with Li metal anodes of high energy density has long been prevented due to the safety concern of dendrite‐related failure. Here a solid–liquid hybrid electrolyte consisting of composite polymer electrolyte (CPE) soaked with liq...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-05-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.201802353 |
| _version_ | 1797742461019226112 |
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| author | Shuixin Xia Jeffrey Lopez Chao Liang Zhichu Zhang Zhenan Bao Yi Cui Wei Liu |
| author_facet | Shuixin Xia Jeffrey Lopez Chao Liang Zhichu Zhang Zhenan Bao Yi Cui Wei Liu |
| author_sort | Shuixin Xia |
| collection | DOAJ |
| description | Abstract The widespread implementation of lithium‐metal batteries (LMBs) with Li metal anodes of high energy density has long been prevented due to the safety concern of dendrite‐related failure. Here a solid–liquid hybrid electrolyte consisting of composite polymer electrolyte (CPE) soaked with liquid electrolyte is reported. The CPE membrane composes of self‐healing polymer and Li+‐conducting nanoparticles. The electrodeposited lithium metal in a uniform, smooth, and dense behavior is achieved using a hybrid electrolyte, rather than dendritic and pulverized structure for a conventional separator. The Li foil symmetric cells can deliver remarkable cycling performance at ultrahigh current density up to 20 mA cm−2 with an extremely low voltage hysteresis over 1500 cycles. A large areal capacity of 10 mAh cm−2 at 10 mA cm−2 could also be obtained. Furthermore, the Li|Li4Ti5O12 cells based on the hybrid electrolyte achieve a higher specific capacity and longer cycling life than those using conventional separators. The superior performances are mainly attributed to strong adhesion, volume conformity, and self‐healing functionality of CPE, providing a novel approach and a significant step toward cost‐effective and large‐scalable LMBs. |
| first_indexed | 2024-03-12T14:41:09Z |
| format | Article |
| id | doaj.art-84b04dac342048afad433f5b639bd80d |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-03-12T14:41:09Z |
| publishDate | 2019-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-84b04dac342048afad433f5b639bd80d2023-08-16T08:41:29ZengWileyAdvanced Science2198-38442019-05-0169n/an/a10.1002/advs.201802353High‐Rate and Large‐Capacity Lithium Metal Anode Enabled by Volume Conformal and Self‐Healable Composite Polymer ElectrolyteShuixin Xia0Jeffrey Lopez1Chao Liang2Zhichu Zhang3Zhenan Bao4Yi Cui5Wei Liu6School of Physical Science and Technology ShanghaiTech University Shanghai 201210 ChinaDepartment of Chemical Engineering Stanford University Stanford CA 94305 USASchool of Physical Science and Technology ShanghaiTech University Shanghai 201210 ChinaSchool of Physical Science and Technology ShanghaiTech University Shanghai 201210 ChinaDepartment of Chemical Engineering Stanford University Stanford CA 94305 USADepartment of Materials Science and Engineering Stanford University Stanford CA 94305 USASchool of Physical Science and Technology ShanghaiTech University Shanghai 201210 ChinaAbstract The widespread implementation of lithium‐metal batteries (LMBs) with Li metal anodes of high energy density has long been prevented due to the safety concern of dendrite‐related failure. Here a solid–liquid hybrid electrolyte consisting of composite polymer electrolyte (CPE) soaked with liquid electrolyte is reported. The CPE membrane composes of self‐healing polymer and Li+‐conducting nanoparticles. The electrodeposited lithium metal in a uniform, smooth, and dense behavior is achieved using a hybrid electrolyte, rather than dendritic and pulverized structure for a conventional separator. The Li foil symmetric cells can deliver remarkable cycling performance at ultrahigh current density up to 20 mA cm−2 with an extremely low voltage hysteresis over 1500 cycles. A large areal capacity of 10 mAh cm−2 at 10 mA cm−2 could also be obtained. Furthermore, the Li|Li4Ti5O12 cells based on the hybrid electrolyte achieve a higher specific capacity and longer cycling life than those using conventional separators. The superior performances are mainly attributed to strong adhesion, volume conformity, and self‐healing functionality of CPE, providing a novel approach and a significant step toward cost‐effective and large‐scalable LMBs.https://doi.org/10.1002/advs.201802353high rateslithium dendriteslithium meal anodesself‐healing polymersvolume conformal |
| spellingShingle | Shuixin Xia Jeffrey Lopez Chao Liang Zhichu Zhang Zhenan Bao Yi Cui Wei Liu High‐Rate and Large‐Capacity Lithium Metal Anode Enabled by Volume Conformal and Self‐Healable Composite Polymer Electrolyte Advanced Science high rates lithium dendrites lithium meal anodes self‐healing polymers volume conformal |
| title | High‐Rate and Large‐Capacity Lithium Metal Anode Enabled by Volume Conformal and Self‐Healable Composite Polymer Electrolyte |
| title_full | High‐Rate and Large‐Capacity Lithium Metal Anode Enabled by Volume Conformal and Self‐Healable Composite Polymer Electrolyte |
| title_fullStr | High‐Rate and Large‐Capacity Lithium Metal Anode Enabled by Volume Conformal and Self‐Healable Composite Polymer Electrolyte |
| title_full_unstemmed | High‐Rate and Large‐Capacity Lithium Metal Anode Enabled by Volume Conformal and Self‐Healable Composite Polymer Electrolyte |
| title_short | High‐Rate and Large‐Capacity Lithium Metal Anode Enabled by Volume Conformal and Self‐Healable Composite Polymer Electrolyte |
| title_sort | high rate and large capacity lithium metal anode enabled by volume conformal and self healable composite polymer electrolyte |
| topic | high rates lithium dendrites lithium meal anodes self‐healing polymers volume conformal |
| url | https://doi.org/10.1002/advs.201802353 |
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