Complementary two-phase anode improving stability and conductivity for lithium storage performance

Xie, Xuefang; Fang, Guozhao; Hu, Ying-Zhu; Cao, Xinxin; Zhu, Ting; Pan, Anqiang

doi:10.1007/s12598-022-02083-1

Cited by 8 publications

(1 citation statement)

References 75 publications

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“…In recent years, lithium-ion batteries (LIBs) with long lifespan and high energy density have aroused widespread interest. [1][2][3][4][5][6][7] Silicon (Si) is considered to be one of the most promising alternatives to traditional graphite owing to its highest theoretical capacity (4200 mA h g −1 ), low working potential (0.2 V vs. Li/Li + ), and abundant reserves. [8][9][10] Unfortunately, Si exhibits poor electrical conductivity, a low lithium-ion diffusion coefficient, and severe volume expansion (>300%) during the lithiation process, which leads to silicon particle pulverization and rapid capacity decay.…”

Section: Introductionmentioning

confidence: 99%

Encapsulating biomass-derived SiO_x with internal conductive channels in nitrogen-doped flexible carbon cages for high performance Li ion-battery anodes

Kong,

Xi,

Jiang

et al. 2024

Inorg. Chem. Front.

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Section: Introductionmentioning

confidence: 99%

Encapsulating biomass-derived SiO_x with internal conductive channels in nitrogen-doped flexible carbon cages for high performance Li ion-battery anodes

Kong,

Xi,

Jiang

et al. 2024

Inorg. Chem. Front.

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Pressure‐Induced Dense and Robust Ge Architecture for Superior Volumetric Lithium Storage

Han,

Liu,

Zheng

et al. 2024

Advanced Energy Materials

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The germanium (Ge) anode attains wide attention in lithium‐ion batteries because of its high theoretical volumetric capacity (8646 mAh cm−3). However, the huge volume expansion (≈230%) results in its poor electrochemical performances. The strategies reported in the literature to solve the issue often cause a low packing density, lowering the volumetric capacity. Here, a pressure‐induced route is proposed to fabricate a Ge architecture, in which nano‐sized Ge (≈15 nm) is encapsulated by robust TiO2 and highly conductive carbon, which offer the advantages of a low stress–strain characteristic, low volume expansion in thickness change, high electrical conductivity (463.2 S m−1), high Li‐ion diffusion coefficient (9.55 × 10−9–8.51 × 10−12 cm2 s−1), and high tapping density (1.79 g cm−3). As a result, the dense architecture obtains outstanding volumetric capacities of 3559.8 mAh cm−3 at 0.1 A g−1 and 2628.2 mAh cm−3 at 20 A g−1, along with excellent cycling life over 5000 cycles at 10 A g−1. Remarkably, the full cell achieves a high volumetric energy density of 1760.1 Wh L−1, along with impressive fast‐charging performances and long cycling life. This work provides a new synthesis strategy and deep insight into the design of high‐volumetric capacity alloy‐based lithium‐ion‐battery anodes.

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Enhanced potassium storage of carbon nanofibers as binder-free anodes enabled by coupling ultra-small amorphous Sb2O3, graphene modification and sulfur doping

Huang,

Lou,

Peng

et al. 2023

Rare Met.

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Complementary two-phase anode improving stability and conductivity for lithium storage performance

Cited by 8 publications

References 75 publications

Encapsulating biomass-derived SiO_x with internal conductive channels in nitrogen-doped flexible carbon cages for high performance Li ion-battery anodes

Encapsulating biomass-derived SiO_x with internal conductive channels in nitrogen-doped flexible carbon cages for high performance Li ion-battery anodes

Pressure‐Induced Dense and Robust Ge Architecture for Superior Volumetric Lithium Storage

Enhanced potassium storage of carbon nanofibers as binder-free anodes enabled by coupling ultra-small amorphous Sb2O3, graphene modification and sulfur doping

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Complementary two-phase anode improving stability and conductivity for lithium storage performance

Cited by 8 publications

References 75 publications

Encapsulating biomass-derived SiOx with internal conductive channels in nitrogen-doped flexible carbon cages for high performance Li ion-battery anodes

Encapsulating biomass-derived SiOx with internal conductive channels in nitrogen-doped flexible carbon cages for high performance Li ion-battery anodes

Pressure‐Induced Dense and Robust Ge Architecture for Superior Volumetric Lithium Storage

Enhanced potassium storage of carbon nanofibers as binder-free anodes enabled by coupling ultra-small amorphous Sb2O3, graphene modification and sulfur doping

Contact Info

Product

Resources

About

Encapsulating biomass-derived SiO_x with internal conductive channels in nitrogen-doped flexible carbon cages for high performance Li ion-battery anodes

Encapsulating biomass-derived SiO_x with internal conductive channels in nitrogen-doped flexible carbon cages for high performance Li ion-battery anodes