Electrode materials for aqueous rechargeable lithium batteries

Manjunatha, H.; Suresh, G.; Venkatesha, T. V.

doi:10.1007/s10008-010-1117-6

Cited by 97 publications

(64 citation statements)

References 72 publications

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“…Although the specific capacity is somewhat lower than previous works, the cycle stability is notable when compared to previous results of NTP that has been cycled at low rates. The NTP-C shows a similar percentage decrease in capacity when compared to a similar electrode tested by Li et al with 80 wt% NTP, carbon nanotubes, and a PTFE binder and cycled in neutral 1 M Na 2 SO 4 . 46 There, the material's discharge capacity was found to fade to ∼17% of it's initial discharge capacity in 50 cycles.…”

Section: Resultssupporting

confidence: 56%

Using Polypyrrole Coating to Improve Cycling Stability of NaTi₂(PO₄)₃as an Aqueous Na-Ion Anode

Mohamed

Sansone

Kuei

et al. 2015

J. Electrochem. Soc.

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Aqueous alkali -ion batteries offer an economical method for large-scale energy storage demanded by current sources of renewable energy. Although NASICON-type NaTi 2 (PO 4 ) 3 is an attractive anode material with high capacity and a low redox potential allowing for high voltage cells, it suffers from considerable capacity fade when cycled slowly and deeply. In this work polypyrrole has been introduced as a coating for NaTi 2 (PO 4 ) 3 through a high-energy ballmilling process. When an excessive coating was applied, no redox reactions from the NaTi 2 (PO 4 ) 3 were visible due to the poor Na + diffusion through the polypyrrole. However, the as-coated composites containing 5 wt% polypyrrole showed much better capacity retention compared to the uncoated material, retaining 57% of the initial discharge capacity after 50 cycles compared to the uncoated material, which retained only 10% of the initial discharge capacity. It is concluded that coating NaTi 2 (PO 4 ) 3 with conducting polymers can be an effective strategy for promoting battery lifetime. Large-scale energy storage is needed for the deployment of gridtied and distributed renewable energy sources such as solar installations and wind farms, which rely on power generation that is inherently intermittent. For this kind of storage, the single most important performance attribute is the amortized cost of stored electricity over the life of the energy storage device; as such long life and robustness through thousands of use cycles are critical attributes.1,2 As such, we have sought to develop low cost, easy to manufacture battery chemistries that are composed of benign materials and have the necessary long-term stability. Neutral pH aqueous based battery systems are well suited for this purpose. The higher conductivity of aqueous electrolytes allows for thicker electrodes, low cost electrolyte salts such as Li 2 SO 4 and Na 2 SO 4 can be used in place of LiPF 6 , and nonwoven cellulose separators can be used in place of more expensive porous polyolefins. ,9-11,15,19-27 as anode materials. While a significant amount of research has been carried out on the failure mechanism of cathode materials, little has been done to elucidate the anode material role in battery failure in aqueous electrolytes. Furthermore, there are some cathode systems that have exhibited many thousands of stable cycles without loss in function, 8,28 while materials at useful anode potentials tend to lose function rapidly. 23,29 Of particular interest are the sodium super ionic conductor (NA-SICON) titanium phosphates due to their high ionic conductivities, relative low cost of production, and chemical stability. 11,24,25 In particular, NaTi 2 (PO 4 ) 3 with a theoretical capacity of 133 mAh/g and the ability to replace lithium salts with sodium equivalents should offer a cost-effective alternative to the lithium equivalent. However, this material commonly exhibits significant capacity fade, especially when cycled deeply/slowly, and the phenomena responsible for this loss in function remains p...

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Section: Resultssupporting

confidence: 56%

Using Polypyrrole Coating to Improve Cycling Stability of NaTi₂(PO₄)₃as an Aqueous Na-Ion Anode

Mohamed

Sansone

Kuei

et al. 2015

J. Electrochem. Soc.

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“…Compared with non-aqueous lithium ion battery, in aqueous lithium ion batteries, the safety issue is essentially settled, severe manufacturing conditions are ignored, and the conductivity of aqueous solutions is two orders of magnitude higher than that of organic electrolytes. Although the energy density of these batteries is lower than that of non-aqueous lithium ion batteries, it can be compared with that of Pb-acid and Ni-Cd batteries [2]. Poor cycle performance of this battery system is the major concern preventing its wide investigation and application.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical characterization of polypyrrole–LiNi1/3Mn1/3Co1/3O2 composite cathode material for aqueous rechargeable lithium batteries

Shivashankaraiah¹,

Manjunatha²,

Mahesh³

et al. 2011

J Solid State Electrochem

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“…Aqueous sodium cells using a Na x MnO 2 cathode and a capacitive carbon anode have been demonstrated to offer long cycle life, but have limited rate capability 9,10 . These aqueous battery technologies have been limited primarily by the development of anode materials that have the correct potential and that are chemically stable at the desired electrolyte pH 11 .…”

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confidence: 99%

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

et al. 2012

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new types of energy storage are needed in conjunction with the deployment of solar, wind and other volatile renewable energy sources and their integration with the electric grid. no existing energy storage technology can economically provide the power, cycle life and energy efficiency needed to respond to the costly short-term transients that arise from renewables and other aspects of grid operation. Here we demonstrate a new type of safe, fast, inexpensive, long-life aqueous electrolyte battery, which relies on the insertion of potassium ions into a copper hexacyanoferrate cathode and a novel activated carbon/polypyrrole hybrid anode. The cathode reacts rapidly with very little hysteresis. The hybrid anode uses an electrochemically active additive to tune its potential. This high-rate, high-efficiency cell has a 95% round-trip energy efficiency when cycled at a 5C rate, and a 79% energy efficiency at 50C. It also has zero-capacity loss after 1,000 deep-discharge cycles.

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Electrode materials for aqueous rechargeable lithium batteries

Cited by 97 publications

References 72 publications

Using Polypyrrole Coating to Improve Cycling Stability of NaTi₂(PO₄)₃as an Aqueous Na-Ion Anode

Using Polypyrrole Coating to Improve Cycling Stability of NaTi₂(PO₄)₃as an Aqueous Na-Ion Anode

Electrochemical characterization of polypyrrole–LiNi1/3Mn1/3Co1/3O2 composite cathode material for aqueous rechargeable lithium batteries

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

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Electrode materials for aqueous rechargeable lithium batteries

Cited by 97 publications

References 72 publications

Using Polypyrrole Coating to Improve Cycling Stability of NaTi2(PO4)3as an Aqueous Na-Ion Anode

Using Polypyrrole Coating to Improve Cycling Stability of NaTi2(PO4)3as an Aqueous Na-Ion Anode

Electrochemical characterization of polypyrrole–LiNi1/3Mn1/3Co1/3O2 composite cathode material for aqueous rechargeable lithium batteries

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

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Using Polypyrrole Coating to Improve Cycling Stability of NaTi₂(PO₄)₃as an Aqueous Na-Ion Anode

Using Polypyrrole Coating to Improve Cycling Stability of NaTi₂(PO₄)₃as an Aqueous Na-Ion Anode