Superlithiophilic Amorphous SiO2–TiO2 Distributed into Porous Carbon Skeleton Enabling Uniform Lithium Deposition for Stable Lithium Metal Batteries
Abstract Lithium (Li) metal anodes have garnered increasing interest in recent years as its high theoretical capacity and low electrochemical potential promises a myriad of opportunities for various applications. However, one critical issue to overcome is the inhomogeneous deposition of Li+ during t...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-09-01
|
| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.201900943 |
| _version_ | 1818981219971366912 |
|---|---|
| author | Pan Xue Chuang Sun Hongpeng Li Jiajie Liang Chao Lai |
| author_facet | Pan Xue Chuang Sun Hongpeng Li Jiajie Liang Chao Lai |
| author_sort | Pan Xue |
| collection | DOAJ |
| description | Abstract Lithium (Li) metal anodes have garnered increasing interest in recent years as its high theoretical capacity and low electrochemical potential promises a myriad of opportunities for various applications. However, one critical issue to overcome is the inhomogeneous deposition of Li+ during the plating and stripping process. This inhomogeneous deposition could result in uncontrollable dendrite growth, further leading to poor coulombic efficiency, shorter lifecycles, and safety concerns due to internal short circuit and thermal runaways. To address these issues, a 3D porous core–shell fiber scaffold is presented, comprising of well‐dispersed SiO2, TiO2, and carbon, as superlithiophilic host materials for lithium anodes. The amorphous SiO2 and TiO2 allow for controllable nucleation and deposition of metal Li inside the porous core–shell fiber even at ultrahigh current densities of 10 mA cm−2. In addition, the interconnected conductive fiber with high porosity enables good electrical conductivity with fast ion transport and excellent mechanical strength to withstand massive Li loading during repeated cycles of stripping and plating. As a result, excellent cycling performance and high rate capability are observed in both symmetric cells and full cells, highlighting the feasibility of the proposed Li anode composite. |
| first_indexed | 2024-12-20T17:27:51Z |
| format | Article |
| id | doaj.art-38fd730ac2d34890a095c229fda57beb |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-12-20T17:27:51Z |
| publishDate | 2019-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-38fd730ac2d34890a095c229fda57beb2022-12-21T19:31:29ZengWileyAdvanced Science2198-38442019-09-01618n/an/a10.1002/advs.201900943Superlithiophilic Amorphous SiO2–TiO2 Distributed into Porous Carbon Skeleton Enabling Uniform Lithium Deposition for Stable Lithium Metal BatteriesPan Xue0Chuang Sun1Hongpeng Li2Jiajie Liang3Chao Lai4School of Chemistry and Materials Science Jiangsu Normal University Xuzhou Jiangsu 221116 P. R. ChinaSchool of Chemistry and Materials Science Jiangsu Normal University Xuzhou Jiangsu 221116 P. R. ChinaSchool of Materials Science and Engineering National Institute for Advanced Materials Nankai University Tianjin 300350 P. R. ChinaSchool of Materials Science and Engineering National Institute for Advanced Materials Nankai University Tianjin 300350 P. R. ChinaSchool of Chemistry and Materials Science Jiangsu Normal University Xuzhou Jiangsu 221116 P. R. ChinaAbstract Lithium (Li) metal anodes have garnered increasing interest in recent years as its high theoretical capacity and low electrochemical potential promises a myriad of opportunities for various applications. However, one critical issue to overcome is the inhomogeneous deposition of Li+ during the plating and stripping process. This inhomogeneous deposition could result in uncontrollable dendrite growth, further leading to poor coulombic efficiency, shorter lifecycles, and safety concerns due to internal short circuit and thermal runaways. To address these issues, a 3D porous core–shell fiber scaffold is presented, comprising of well‐dispersed SiO2, TiO2, and carbon, as superlithiophilic host materials for lithium anodes. The amorphous SiO2 and TiO2 allow for controllable nucleation and deposition of metal Li inside the porous core–shell fiber even at ultrahigh current densities of 10 mA cm−2. In addition, the interconnected conductive fiber with high porosity enables good electrical conductivity with fast ion transport and excellent mechanical strength to withstand massive Li loading during repeated cycles of stripping and plating. As a result, excellent cycling performance and high rate capability are observed in both symmetric cells and full cells, highlighting the feasibility of the proposed Li anode composite.https://doi.org/10.1002/advs.201900943lithiophilic hostslithium metal anodeslithium metal batteriessilicatitanium dioxide |
| spellingShingle | Pan Xue Chuang Sun Hongpeng Li Jiajie Liang Chao Lai Superlithiophilic Amorphous SiO2–TiO2 Distributed into Porous Carbon Skeleton Enabling Uniform Lithium Deposition for Stable Lithium Metal Batteries Advanced Science lithiophilic hosts lithium metal anodes lithium metal batteries silica titanium dioxide |
| title | Superlithiophilic Amorphous SiO2–TiO2 Distributed into Porous Carbon Skeleton Enabling Uniform Lithium Deposition for Stable Lithium Metal Batteries |
| title_full | Superlithiophilic Amorphous SiO2–TiO2 Distributed into Porous Carbon Skeleton Enabling Uniform Lithium Deposition for Stable Lithium Metal Batteries |
| title_fullStr | Superlithiophilic Amorphous SiO2–TiO2 Distributed into Porous Carbon Skeleton Enabling Uniform Lithium Deposition for Stable Lithium Metal Batteries |
| title_full_unstemmed | Superlithiophilic Amorphous SiO2–TiO2 Distributed into Porous Carbon Skeleton Enabling Uniform Lithium Deposition for Stable Lithium Metal Batteries |
| title_short | Superlithiophilic Amorphous SiO2–TiO2 Distributed into Porous Carbon Skeleton Enabling Uniform Lithium Deposition for Stable Lithium Metal Batteries |
| title_sort | superlithiophilic amorphous sio2 tio2 distributed into porous carbon skeleton enabling uniform lithium deposition for stable lithium metal batteries |
| topic | lithiophilic hosts lithium metal anodes lithium metal batteries silica titanium dioxide |
| url | https://doi.org/10.1002/advs.201900943 |
| work_keys_str_mv | AT panxue superlithiophilicamorphoussio2tio2distributedintoporouscarbonskeletonenablinguniformlithiumdepositionforstablelithiummetalbatteries AT chuangsun superlithiophilicamorphoussio2tio2distributedintoporouscarbonskeletonenablinguniformlithiumdepositionforstablelithiummetalbatteries AT hongpengli superlithiophilicamorphoussio2tio2distributedintoporouscarbonskeletonenablinguniformlithiumdepositionforstablelithiummetalbatteries AT jiajieliang superlithiophilicamorphoussio2tio2distributedintoporouscarbonskeletonenablinguniformlithiumdepositionforstablelithiummetalbatteries AT chaolai superlithiophilicamorphoussio2tio2distributedintoporouscarbonskeletonenablinguniformlithiumdepositionforstablelithiummetalbatteries |