Comportement electrochimique des phases NaxCoO2

Braconnier, Jean-Jacques; Delmas, Claude; Fouassier, C.; Hagenmuller, Paul

doi:10.1016/0025-5408(80)90199-3

Cited by 244 publications

(163 citation statements)

References 12 publications

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“…7 In the same year, the electrochemical properties of sodium-containing layered oxides, Na x CoO 2 , were reported by Branconnier et al 8 As researches …”

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confidence: 88%

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Review—Practical Issues and Future Perspective for Na-Ion Batteries

Kubota

Komaba

2015

J. Electrochem. Soc.

631

536

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Research on electrochemical Na intercalation in battery system has been reported since the early 1980s but Na-ion batteries are not commercialized so far though studies on Li-ion batteries have been reported since the late 1970s and the practical batteries have been extensively utilized for portable device applications in the world since 1991. Now, targeted application of research and development for rechargeable batteries has changed toward realization of the sustainable energy society. With the change in social situation and development of the battery technology, studies on Na-ion batteries have been attracted significant interests since 2010. Although research interests of the electrode materials for Na-ion batteries are evoked in many researchers, advantages, disadvantages, and issues are not fully discussed for realizing the commercialization of Na-ion batteries. In this article, practical issues and perspective are reviewed on the basis of mainly our experimental experiences, know-how, and results, and the future direction is proposed to overcome the issues and to challenge the advanced performance. Power storage technology has been dramatically developed since rechargeable lithium battery (LIB), which are often called a Li-ion battery as named by Sony Corp., was commercialized in 1991 and delivered great impact on economy with tapping into new markets. A high-energy powerful LIB for portable electronic devices such as lap top computers and mobile phones is one of the best examples, and indeed they become essential tools for our life. Thanks for the great research achievement, the price of the battery pack has been declining for more than 20 years, and LIBs are now able to be installed in power system for hybrid electric vehicles (HEV) and battery electric vehicles (BEV) with relatively affordable price. Continuous effort has been devoted on the development of LIBs toward higher-power/higherenergy performance, and they now become promising candidates for being a part of grid-scale energy storage incorporated with wind and solar power systems. When it comes to large-scale power system more than that for electric vehicles, the priority in research is shifted to production cost from performance and thus minor-metal free or low-cost materials that can be derived from more abundant resources have become increasingly desirable. Although LiMn 2 O 4 , LiFePO 4 , and LiNi x Mn y Co z O 2, which are utilized in HEV and BEV instead of costly LiCoO 2, are recognized as low cost materials, 1,2 lithium in the Earth's crust is unevenly distributed as minor-metal and consequently affecting to dependence on import of lithium resource and additionally to product costs. In contrast to lithium, sodium is unlimited in the Earth's crust and sea, and is one of the most abundant elements in the Earth's crust. Since the alternative to lithium is more desirable for realizing largescale power source and sodium is the second lightest alkali next to lithium, Na-ion batteries (NIBs) have attracted much attention as feasible technology ...

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“…7 In the same year, the electrochemical properties of sodium-containing layered oxides, Na x CoO 2 , were reported by Branconnier et al 8 As researches …”

mentioning

confidence: 88%

“…8 In Na-ion full cells, 1 mol dm −3 NaPF 6 /dimethyl ether (DME) was reported to be used for poly(p-phenylene)-Na x Pb alloy composite//P2-Na x CoO 2 and Na x Pb alloy//P2-Na x CoO 2 cells. 1 mol dm −3 NaClO 4 /EC:PC (= 50:50 wt%) solution than those for 1 mol dm −3 NaPF 6 /EC:PC.…”

Section: Electrolyte Salts Solvents Additives and Bindersmentioning

confidence: 99%

Review—Practical Issues and Future Perspective for Na-Ion Batteries

Kubota

Komaba

2015

J. Electrochem. Soc.

631

536

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“…[68][69][70][71] Therefore, it is not amazing that its Na counterpart, Na x CoO 2 , has attracted much attention as an alternative in the 1980s. [72,73] The electrochemical properties of P2 and O3 Na x CoO 2 ( Figure 2c,d) were first investigated by Delmas et al [73,74] On Na + extraction, O3-Na x CoO 2 first transformed into monoclinic distorted O′3-Na x CoO 2 then to P3-Na x CoO 2 (0.5 ≤ x ≤ 1.48), while the P2-Na x CoO 2 could preserve its structure throughout all the electrochemical process. The different reaction mechanism might lie in the fact that extra energy is required for phase transition from P2-to O-type structured Na x CoO 2 due to rotation of the CoO 6 octaherdra and breakage of the CoO bond.…”

Section: Mostly Studied Single-metal-based Oxidesmentioning

confidence: 99%

Layered Oxide Cathodes for Sodium‐Ion Batteries: Phase Transition, Air Stability, and Performance

Wang

You

Yin

et al. 2017

Advanced Energy Materials

619

464

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sources into large-scale grids, inexpensive, efficient, and fast-responding electrical energy storage (EES) systems are essential to store the off-peak energy and releasing the stored energy during the onpeak period. Among various EES systems, rechargeable batteries represent one of the most competitive technologies because of their high conversion efficiency and environmental friendliness. [1][2][3][4] For stationary EES systems, batteries with low cost, high safety, high rate capability, and long cycle stability are highly desired.Lithium (Li)-ion batteries (LIBs) have achieved great success in the market of portable electronics and electric vehicles since their commercialization by Sony Company in 1991. However, the shortage of Li resources in nature gives rise to a concern about its sustainable development in grid scale. Compared with Li, sodium resource has rich natural abundance in the earth crust and a worldwide distribution, consequently leading to a low price of sodium-based raw materials (e.g., the cost of Na 2 CO 3 is about 25-30 times lower than that of Li 2 CO 3 ). Besides, sodium has a suitable redox potential (E 0 (Na + /Na) = −2.71 V versus standard hydrogen electrode (SHE), 0.3 V above that of Li + /Li) and similar physical and chemical properties with lithium. [5,6] Therefore, rechargeable sodium-ion batteries (SIBs), which have a similar "rockingchair" working principle of LIBs, are emerging as an appealing choice as alternatives for LIBs. Note that it is difficult for SIBs to bypass LIBs in terms of energy densities because of the much higher weight of Na and lower standard electrochemical potential. [7][8][9][10] Nevertheless, the use of low-cost materials, including inexpensive Na-based raw materials and Al current collectors for both cathodes and anodes in SIBs, could significantly reduce the cost. In this case, SIBs could be applied where cost-effectiveness rather than energy density is the most critical issue, e.g., in the field of large-scale EES. As a result, sodiumbased electroactive materials are enjoying renewed interest especially for very low cost systems for grid storage. [11,12] Given that cathode materials are the key component that determines energy density and cost, tremendous efforts have been devoted to exploring suitable positive electrode materials with high reversible capacity, rapid Na ions insertion/extraction, and good cycling stability in the past few years. [13,14] A broad range of compounds, including layered oxides, polyanionic frameworks, hexacyanoferrates, and organics, haveThe increasing demand for replacing conventional fossil fuels with clean energy or economical and sustainable energy storage drives better battery research today. Sodium-ion batteries (SIBs) are considered as a promising alternative for grid-scale storage applications due to their similar "rockingchair" sodium storage mechanism to lithium-ion batteries, the natural abundance, and the low cost of Na resources. Searching for appropriate electrode materials with acceptable electrochemical perfor...

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“…Sodium cobalt oxide is a cobalt bronze which possesses a layered structure (13). Sodium ions reside in layers between the layers of edge sharing (CoOs) octahedral.…”

Section: Ppp/naxpb Compositementioning

confidence: 99%

A Rechargeable Cell Based on a Conductive Polymer/Metal Alloy Composite Electrode

Jow¹,

Shacklette²

1989

J. Electrochem. Soc.

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A composite electrode composed of a conductive polymer and an alkali-metal alloy has been investigated as the negative electrode for a nonaqueous rechargeable cell. A sodium-alloy based composite electrode composed of Na3.7~Pb, poly(p-phenylene), and binder achieved a capacity of 234 mAh/g or 450 mAh/cm 3. This electrode also exhibited excellent cycle life and rate capability without dendrite formation. The composite electrode exhibited kinetic behavior similar to that of pure sodium metal. A balanced cell was constructed by combining the above sodium-ion-inserting composite negative electrode with a sodium-ion-inserting positive electrode, Na=CoO2, of approximately equal capacity. The cell exhibited excellent cycle life (>250 cycles). The semiempirical energy density of the NaxCoO2/composite electrode system is comparable to alternative lithium metal based cell such as TiS2/Li assuming that excess Li is needed in the latter case.One of the primary concerns in the development of secondary lithium batteries is the rechargeability of the Li electrode. Among the various approaches, the selection of particular combinations of salt and solvent (or mixed solvents) have previously seemed the most successful (1-2) in addressing the rechargeability problem. Recently, Jow et al. (3) presented a novel approach which utilizes the special attributes of conductive polymers to construct composite negative electrodes which offer excellent rechargeability. In these composite electrodes the conductive polymer provides a matrix which offers special electrical, electrochemical, and mechanical attributes. Conductive polymers function as mixed conductors which conduct both electrons and ions. Conductive polymers also offer reversible electroactivity over a wide potential range which depends on the polymer and the electrolyte employed (3-5). For polyacetylene (PA) in LiPFJ2-methyltetrahydrofuran (2-MTHF) solution, the lithium-doped polymer is stable and electrochemically active between 0.1 and 1.5V vs. Li/Li +. For sodium-doped polyphenylene (PPP) in NaPF6/dimethoxyethane (DME) solution, the electroactive range extends between 0 and 0.8V vs. Na/Na § These wide potential ranges encompass the range of electroactivity of most alkali-metal alloys.When conductive polymers with such attributes are combined with alkali-metal alloys, the resulting composite electrodes have good rate capability and cyclability because the polymer matrix can efficiently transport and exchange ions and electrons between current collector, electrolyte, and alloy. The long life and high rate capability largely derive from the unique mechanical characteristics of conductive polymers. They possess a degree of elasticity which allows the matrix to accommodate volume changes in the alloy, and they swell in the electrolyte to provide a matrix which offers a particularly high effective diffusivity for ions, ca. 10 6 cm2/s (6).All solid-state composite electrodes composed of a mixture of alloys have als0 been previously suggested as an alternative for the lithium...

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Comportement electrochimique des phases NaxCoO2

Cited by 244 publications

References 12 publications

Review—Practical Issues and Future Perspective for Na-Ion Batteries

Review—Practical Issues and Future Perspective for Na-Ion Batteries

Layered Oxide Cathodes for Sodium‐Ion Batteries: Phase Transition, Air Stability, and Performance

A Rechargeable Cell Based on a Conductive Polymer/Metal Alloy Composite Electrode

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