Sandwich-like Mn3O4/carbon nanofragment composites with a higher capacity than commercial graphite and hierarchical voltage plateaus for lithium ion batteries

Zhuang, Yuchan; Ma, Zhen; Deng, Yaoming; Song, Xiaona; Zuo, Xiaoxi; Xiao, Xin; Nan, Junmin

doi:10.1016/j.electacta.2017.05.171

Cited by 28 publications

(9 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Notably, transition‐metal oxide materials have displayed promising potential because of their higher reversible capacities . Among them, Mn 3 O 4 has high theoretical capacity (2.5 times that of graphite), natural abundance, nontoxicity, and low cost; thus making it a promising anode material for high‐performance LIBs . However, significant volume changes during charge–discharge processes and low electrical conductivity lead to fast capacity decay and poor rate performance.…”

Section: Introductionsupporting

confidence: 90%

“…[11][12][13][14] Among them, Mn 3 O 4 has high theoretical capacity (2.5 times that of graphite), natural abundance,n ontoxicity,a nd low cost;t hus making it ap romising anode materialf or high-performance LIBs. [15][16][17][18] However,s ignificant volume changes during charge-discharge processesa nd low electrical conductivity lead to fast capacity decay andpoor rate performance.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

In Situ Synthesis of Mn₃O₄ Nanoparticles on Hollow Carbon Nanofiber as High‐Performance Lithium‐Ion Battery Anode

Zhang

Jiang

et al. 2018

Chemistry A European J

View full text Add to dashboard Cite

The practical applications of Mn O in lithium-ion batteries are greatly hindered by fast capacity decay and poor rate performance as a result of significant volume changes and low electrical conductivity. It is believed that the synthesis of nanoscale Mn O combined with carbonaceous matrix will lead to a better electrochemical performance. Herein, a convenient route for the synthesis of Mn O nanoparticles grown in situ on hollow carbon nanofiber (denoted as HCF/Mn O ) is reported. The small size of Mn O particles combined with HCF can significantly alleviate volume changes and electrical conductivity; the strong chemical interactions between HCF and Mn O would improve the reversibility of the conversion reaction for MnO into Mn O and accelerate charge transfer. These features endow the HCF/Mn O composite with superior cycling stability and rate performance if used as the anode for lithium-ion batteries. The composite delivers a high discharge capacity of 835 mA h g after 100 cycles at 200 mA g , and 652 mA h g after 240 cycles at 1000 mA g . Even at 2000 mA g , it still shows a high capacity of 528 mA h g . The facile synthetic method and outstanding electrochemical performance of the as-prepared HCF/Mn O composite make it a promising candidate for a potential anode material for lithium-ion batteries.

show abstract

Section: Introductionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

In Situ Synthesis of Mn₃O₄ Nanoparticles on Hollow Carbon Nanofiber as High‐Performance Lithium‐Ion Battery Anode

Zhang

Jiang

et al. 2018

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…The splitting width of 11.7 eV is in good agreement with those reported for Mn 3 O 4 [32]. The O 1s XPS spectra exhibit two peaks at 529.8 and 531.5 eV, corresponding to the Mn-O-Mn bond in the oxide and Mn-O-H hydroxide[33]. The C 1s has only one intensive peak at 284.5 eV due to C-C sp 2 bonding for all the materials[34].…”

supporting

confidence: 86%

Directly Electrospun Carbon Nanofibers Incorporated with Mn3O4 Nanoparticles as Bending-Resistant Cathode for Flexible Al-Air Batteries

Zuo

Liu

et al. 2020

Nanomaterials

View full text Add to dashboard Cite

Al-air batteries are regarded as potential power source for flexible and wearable devices. However, the traditional cathodes of Al-air batteries are easy to be broken after continuous bending. This is why few Al-air batteries have been tested under the state of dynamic bending so far. Herein, carbon nanofibers incorporated with Mn3O4 catalyst have been prepared as bending-resistant cathodes through direct electrospinning. The cathode assembled in Al-air battery showed excellent electrochemical and mechanical stability. A high specific capacity of 1021 mAh/cm2 was achieved after bending 1000 times, which is 81.7% of that in platform state. This work will facilitate the progress of using Al-air battery in flexible electronics.

show abstract

“…Complex nanostructures have been synthetized that aim to decrease the metal oxide volumetric expansion during cycling and minimize the Li ion diffusion length, such as nanorods, nanoflakes, hollow spheres, microspheres, nanowires, nanosheets . Another popular strategy is to create manganese oxide/carbon composites,, mainly utilizing a very highly conductive matrix such as reduced graphene oxide, or carbon nanotubes,, which both contribute to increase the interparticle electronic conductivity of the anode electrode and act as a buffer for the volumetric expansion experienced during cycling. Both strategies have produced improved results; however, they are usually not sufficient to achieve stable capacity over hundreds of cycles, which is demonstrated for nanocrystalline MnO in Figure S1 in the Supporting Information.…”

Section: Figurementioning

confidence: 99%

Improved Capacity Retention of Metal Oxide Anodes in Li‐Ion Batteries: Increasing Intraparticle Electronic Conductivity through Na Inclusion in Mn₃O₄

et al. 2018

View full text Add to dashboard Cite

In this work, we significantly improve the cyclability of Mn3O4 anodes in Li‐ion batteries by enhancing its intraparticle electronic conductivity by doping with Na. Na was selected because, unlike typical transition‐metal dopants, it is non‐surface redox active in the potential window where the metal oxide conversion reaction occurs, and hence is more electrochemically stable during charge/discharge cycling. This work presents the first time that Na has been used as a dopant in metal oxide anodes, and the result is excellent capacity retention and rate capability. More specifically, Na was added to Mn3O4 (to achieve a Mn/Na ratio of ca. 9 : 1), impregnated onto a carbon nanotube matrix. The concentration of Na considering the entire composition of the anode material was 0.5 at %. These electrodes were able to achieve a capacity of approximately 750 mAh/g at a 1C rate, and retain over 99 % of that capacity over 500 cycles. They were also able to provide nearly twice the theoretical capacity of conventional graphite anodes under high rate discharge (609 mAh/g @ 5C), as well as achieve a higher capacity at 10C (ca. 350 mAh/g) than conventional graphite electrodes can at 1C.

show abstract

Sandwich-like Mn3O4/carbon nanofragment composites with a higher capacity than commercial graphite and hierarchical voltage plateaus for lithium ion batteries

Cited by 28 publications

References 35 publications

In Situ Synthesis of Mn₃O₄ Nanoparticles on Hollow Carbon Nanofiber as High‐Performance Lithium‐Ion Battery Anode

In Situ Synthesis of Mn₃O₄ Nanoparticles on Hollow Carbon Nanofiber as High‐Performance Lithium‐Ion Battery Anode

Directly Electrospun Carbon Nanofibers Incorporated with Mn3O4 Nanoparticles as Bending-Resistant Cathode for Flexible Al-Air Batteries

Improved Capacity Retention of Metal Oxide Anodes in Li‐Ion Batteries: Increasing Intraparticle Electronic Conductivity through Na Inclusion in Mn₃O₄

Contact Info

Product

Resources

About

Sandwich-like Mn3O4/carbon nanofragment composites with a higher capacity than commercial graphite and hierarchical voltage plateaus for lithium ion batteries

Cited by 28 publications

References 35 publications

In Situ Synthesis of Mn3O4 Nanoparticles on Hollow Carbon Nanofiber as High‐Performance Lithium‐Ion Battery Anode

In Situ Synthesis of Mn3O4 Nanoparticles on Hollow Carbon Nanofiber as High‐Performance Lithium‐Ion Battery Anode

Directly Electrospun Carbon Nanofibers Incorporated with Mn3O4 Nanoparticles as Bending-Resistant Cathode for Flexible Al-Air Batteries

Improved Capacity Retention of Metal Oxide Anodes in Li‐Ion Batteries: Increasing Intraparticle Electronic Conductivity through Na Inclusion in Mn3O4

Contact Info

Product

Resources

About

In Situ Synthesis of Mn₃O₄ Nanoparticles on Hollow Carbon Nanofiber as High‐Performance Lithium‐Ion Battery Anode

In Situ Synthesis of Mn₃O₄ Nanoparticles on Hollow Carbon Nanofiber as High‐Performance Lithium‐Ion Battery Anode

Improved Capacity Retention of Metal Oxide Anodes in Li‐Ion Batteries: Increasing Intraparticle Electronic Conductivity through Na Inclusion in Mn₃O₄