P-Doping a Porous Carbon Host Promotes the Lithium Storage Performance of Red Phosphorus

被引:19
|
作者
Han, Xinyi [1 ,2 ]
Meng, Xiaodong [3 ]
Chen, Shang [4 ]
Zhou, Ji [4 ]
Wang, Manyun [4 ]
Sun, Longhua [4 ]
Jia, Yuncan [4 ]
Peng, Xiaomeng [4 ]
Mai, Hairong [4 ]
Zhu, Guangxu [1 ]
Li, Jingyu [1 ]
Bielawski, Christopher W. [5 ,6 ]
Geng, Jianxin [1 ]
机构
[1] Tiangong Univ, Sch Mat Sci & Engn, State Key Lab Separat Membranes & Membrane Proc, Tianjin Key Lab Adv Fibers & Energy Storage, Tianjin 300387, Peoples R China
[2] Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
[3] Tiangong Univ, Sch Mat Sci & Engn, State Key Lab Separat Membranes & Membrane Proc, Tianjin Key Lab Adv Fibers & Energy Storage, Tianjin 300387, Peoples R China
[4] Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
[5] Inst Basic Sci IBS, Ctr Multidimens Carbon Mat CMCM, Ulsan 44919, South Korea
[6] Ulsan Natl Inst Sci & Technol UNIST, Dept Chem, Ulsan 44919, South Korea
基金
中国国家自然科学基金;
关键词
red phosphorus; P-doping; porous carbon; anode; lithium-ion batteries; full cells; ANODE; NANOPARTICLES; CAPACITY; LIFE;
D O I
10.1021/acsami.2c21043
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Red phosphorus (RP) is a promising anode material for use in lithium-ion batteries (LIBs) due to its high theoretical specific capacity (2596 mA h g-1). However, the practical use of RP-based anodes has been challenged by the material's low intrinsic electrical conductivity and poor structural stability during lithiation. Here, we describe a phosphorus-doped porous carbon (P-PC) and disclose how the dopant improves the Li storage performance of RP that was incorporated into the P-PC (designated as RP@P-PC). P-doping porous carbon was achieved using an in situ method wherein the heteroatom was added as the porous carbon was being formed. The phosphorus dopant effectively improves the interfacial properties of the carbon matrix as subsequent RP infusion results in high loadings, small particle sizes, and uniform distribution. In half-cells, an RP@P-PC composite was found to exhibit outstanding performance in terms of the ability to store and utilize Li. The device delivered a high specific capacitance and rate capability (1848 and 1111 mA h g-1 at 0.1 and 10.0 A g-1, respectively) as well as excellent cycling stability (1022 mA h g-1 after 800 cycles at 2.0 A g-1). Exceptional performance metrics were also measured when the RP@P-PC was used as an anode material in full cells that contained lithium iron phosphate as the cathode material. The methodology described can be extended to the preparation of other P-doped carbon materials that are employed in contemporary energy storage applications.
引用
收藏
页码:11713 / 11722
页数:10
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