Germanium Anode with Excellent Lithium Storage Performance in a Germanium/Lithium–Cobalt Oxide Lithium-Ion Battery

Li, Xiuwan; Yang, Zhibo; Fu, Yujun; Qiao, Li; Li, Dan; Yue, Hongwei; He, Dawei

doi:10.1021/nn506760p

Cited by 150 publications

(94 citation statements)

References 34 publications

(52 reference statements)

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“…[166] Therefore, many chemists have devoted themselves to the design and modification of the morphology and structure of Ge. Similar to the above, Ge also suffers from serious volume expansion during the charge/discharge process.…”

Section: Ge-based Materialsmentioning

confidence: 99%

Recent Developments on and Prospects for Electrode Materials with Hierarchical Structures for Lithium‐Ion Batteries

Zhou

Zhang

et al. 2017

Advanced Energy Materials

485

218

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mobile phones, and digital cameras. [1][2][3][4][5][6] Recently, LIBs have also been intensively pursued as an energy-storage technology for electrical vehicles and stationary power stations. [7][8][9][10] The reaction equations, structures, and costs of the individual components of LIBs with the common LiCoO 2 ‖polymer electrolyte‖graphite system are shown in Figure 1. It can be seen that cathode and anode materials, which serve as the most important components of LIBs, largely decide the electrochemical performance and cost of the batteries. According to the intrinsic features and reaction mechanisms of materials, four types of cathode materials and three sorts of anode materials have been investigated. [11][12][13][14][15][16] The traditional electrode material LiCoO 2 is hindered, however, by its relatively low specific capacity and the high price of Co resources, along with its inferiority in terms of environmental friendliness. LiMn 2 O 4 suffers from the Jahn-Teller distortion of Mn 3+ and the dissolution of Mn 2+ in the electrolyte, resulting in severe capacity attenuation and poor cycling performance. Graphite, as the most widely employed anode material, is limited by its finite capacity. Though Li 4 Ti 5 O 12 typically offers excellent cycle life and high safety, its relatively high potential would entail low energy density. In contrast, high-capacity Si material cannot offer long Since their successful commercialization in 1990s, lithium-ion batteries (LIBs) have been widely applied in portable digital products. The energy density and power density of LIBs are inadequate, however, to satisfy the continuous growth in demand. Considering the cost distribution in battery system, it is essential to explore cathode/anode materials with excellent rate capability and long cycle life. Nanometer-sized electrode materials could quickly take up and store numerous Li + ions, afforded by short diffusion channels and large surface area. Unfortunately, low thermodynamic stability of nanoparticles results in electrochemical agglomeration and raises the risk of side reactions on electrolyte. Thus, micro/nano and hetero/hierarchical structures, characterized by ordered assembly of different sizes, phases, and/or pores, have been developed, which enable us to effectively improve the utilization, reaction kinetics, and structural stability of electrode materials. This review summarizes the recent efforts on electrode materials with hierarchical structures, and discusses the effects of hierarchical structures on electrochemical performance in detail. Multidimensional self-assembled structures can achieve integration of the advantages of materials with different sizes. Core/yolk-shell structures provide synergistic effects between the shell and the core/yolk. Porous structures with macro-, meso-, and micropores can accommodate volume expansion and facilitate electrolyte infiltration.

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Section: Ge-based Materialsmentioning

confidence: 99%

Recent Developments on and Prospects for Electrode Materials with Hierarchical Structures for Lithium‐Ion Batteries

Zhou

Zhang

et al. 2017

Advanced Energy Materials

485

218

View full text Add to dashboard Cite

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“…To use today's energy more efficiently, there is a significant demand for storing electric power, not only for mobile electronic devices, but also for effectively utilizing renewable resources such as solar and wind power and storing and transporting them. 1,2 Since the Sony Corporation first successfully marketed commercial lithium ion batteries (LIBs) in 1991, LIBs have been one of the major research focuses, and considered as the front-runner and the most promising technology in the mobile energy storage domain considering the fact that they offer the highest energy-density and operating-voltage among the rechargeable battery technologies. [3][4][5] However, despite the fact that several anode materials such as graphite have already been commercialized, their performance is still unsatisfactory to meet the ever-growing industrial needs (e.g.…”

Section: Introductionmentioning

confidence: 99%

Morphology-dependent performance of Zn₂GeO₄ as a high-performance anode material for rechargeable lithium ion batteries

Feng

Shao

et al. 2015

J. Mater. Chem. A

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In this study, the electrochemical performance of hollow Zn2GeO4 nanoparticles as an anode material of lithium-ion batteries (LIBs) has for the first time been investigated and compared to other morphology-type Zn2GeO4 materials with solid nanorod structure. Results show that the lithium-storage performance is morphology-dependent and the presence of hollow voids is beneficial to enhance the charge/discharge capacity at different current densities. Specifically, the capacity of hollow Zn2GeO4 nanoparticles is approximately 200 mAh g -1 higher than that of Zn2GeO4 solid nanorods after 60 discharge-charge cycles at a current density of 200 mAh g -1 and such high performance (ca. 1200 mAh g -1 ) is in the front rank of current anode materials and three times as high as that of commercial graphite-based anode (372 mAh g -1 ). Moreover, the hollow Zn2GeO4 nanoparticles show better rate capacity and the specific capacity is approximately 300 mAh g -1 higher at a current density of 2000 mAh g -1 in comparison with the Zn2GeO4 nanorods. The hollow voids not only lower the charge transfer resistance by facilitating the lithium-ion diffusion, but also effectively buffer against the local volume changes. Therefore, considering the ease and environmental-friendly synthesis and the high performance (high reversible capacity and good rate capacity), such hollow Zn2GeO4 nanoparticles are a very promising candidate as high-performance anode material for LIBs.

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“…The initial charge and discharge capacities based on anode mass were 833 and 715 mA h g −1 , respectively (Figure a). The cycling performance of full‐cell shown in Figure b is not as good as Sn–Sn 2 Co 3 @CoSnO 3 –Co 3 O 4 half‐cell, which may be due to the low electronic conductivity of LiMn 2 O 4 electrode, an increase in resistance of components by additional SEI formation, or dissolution of electrolyte and metals from the cathode . The specific discharge capacity after 100 cycles was 482 mA h g −1 , and the average coulombic efficiency measured from the second cycle was 98.0%.…”

Section: Resultsmentioning

confidence: 94%

Design and Synthesis of Spherical Multicomponent Aggregates Composed of Core–Shell, Yolk–Shell, and Hollow Nanospheres and Their Lithium‐Ion Storage Performances

Park

2018

Small

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Micrometer-sized spherical aggregates of Sn and Co components containing core-shell, yolk-shell, hollow nanospheres are synthesized by applying nanoscale Kirkendall diffusion in the large-scale spray drying process. The Sn Co -Co SnC -C composite microspheres uniformly dispersed with Sn Co -Co SnC mixed nanocrystals are formed by the first-step reduction of spray-dried precursor powders at 900 °C. The second-step oxidation process transforms the Sn Co -Co SnC -C composite into the porous microsphere composed of Sn-Sn Co @CoSnO -Co O core-shell, Sn-Sn Co @CoSnO -Co O yolk-shell, and CoSnO -Co O hollow nanospheres at 300, 400, and 500 °C, respectively. The discharge capacity of the microspheres with Sn-Sn Co @CoSnO -Co O core-shell, Sn-Sn Co @CoSnO -Co O yolk-shell, and CoSnO -Co O hollow nanospheres for the 200 cycle at a current density of 1 A g is 1265, 987, and 569 mA h g , respectively. The ultrafine primary nanoparticles with a core-shell structure improve the structural stability of the porous-structured microspheres during repeated lithium insertion and desertion processes. The porous Sn-Sn Co @CoSnO -Co O microspheres with core-shell primary nanoparticles show excellent cycling and rate performances as anode materials for lithium-ion batteries.

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Germanium Anode with Excellent Lithium Storage Performance in a Germanium/Lithium–Cobalt Oxide Lithium-Ion Battery

Cited by 150 publications

References 34 publications

Recent Developments on and Prospects for Electrode Materials with Hierarchical Structures for Lithium‐Ion Batteries

Recent Developments on and Prospects for Electrode Materials with Hierarchical Structures for Lithium‐Ion Batteries

Morphology-dependent performance of Zn₂GeO₄ as a high-performance anode material for rechargeable lithium ion batteries

Design and Synthesis of Spherical Multicomponent Aggregates Composed of Core–Shell, Yolk–Shell, and Hollow Nanospheres and Their Lithium‐Ion Storage Performances

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Germanium Anode with Excellent Lithium Storage Performance in a Germanium/Lithium–Cobalt Oxide Lithium-Ion Battery

Cited by 150 publications

References 34 publications

Recent Developments on and Prospects for Electrode Materials with Hierarchical Structures for Lithium‐Ion Batteries

Recent Developments on and Prospects for Electrode Materials with Hierarchical Structures for Lithium‐Ion Batteries

Morphology-dependent performance of Zn2GeO4 as a high-performance anode material for rechargeable lithium ion batteries

Design and Synthesis of Spherical Multicomponent Aggregates Composed of Core–Shell, Yolk–Shell, and Hollow Nanospheres and Their Lithium‐Ion Storage Performances

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Morphology-dependent performance of Zn₂GeO₄ as a high-performance anode material for rechargeable lithium ion batteries