Inorganic Electrolyte Li / CuCl2 Rechargeable Cell

Dey, A. N.; Bowden, William; Kuo, Hsu-Chan; Gopikanth, M. L.; Schlaikjer, C.; Foster, Donald

doi:10.1149/1.2096980

Cited by 21 publications

(3 citation statements)

References 5 publications

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“…Several electrochemical studies of conversion-type LIBs, including Li/transition metal fluoride-, [3][4][5][6][7][8][9][10][11][12] sulfide-, [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] oxide-, and chloride-based [64][65][66][67][68][69] batteries, have been reported. Among conversiontype LIBs using these transition-metal compounds as cathode materials, Li/CuCl 2 batteries are very promising battery systems, with a high voltage (3.07 V vs. Li + /Li) and capacity (399 mAh g −1 ) resulting from the 2-electron redox reaction of CuCl 2 as shown below.…”

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confidence: 99%

Suppression Mechanism for Dissolution of Conversion-Type CuCl₂ Electrode in LiPF₆/methyl Difluoroacetate Electrolyte

Hashizaki

Dobashi

Okada

et al. 2019

J. Electrochem. Soc.

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As the cathode materials in conversion-type lithium ion batteries, transition-metal chlorides are well-known to easily dissolve in many organic solvents. However, the LiPF 6 /methyl difluoroacetate (MFA; CHF 2 COOCH 3 ) electrolyte is effective in suppressing the dissolution of the CuCl 2 electrode, as reported for a Li/CuCl 2 battery. This effect did not arise in the MFA solvent without LiPF 6 , but did on slightly dissolving LiPF 6 in the MFA solvent. This was because a very small amount of film was formed on the surface of the CuCl 2 electrode due to the addition of the small amount of LiPF 6 , and the film was composed of copper fluoride hydroxide, partial release of Cl from CuCl 2 , and CuCl.

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confidence: 99%

Suppression Mechanism for Dissolution of Conversion-Type CuCl₂ Electrode in LiPF₆/methyl Difluoroacetate Electrolyte

Hashizaki

Dobashi

Okada

et al. 2019

J. Electrochem. Soc.

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“…The ionic conductivity and flammability of SO 2 -in-salt electrolytes comprising lithium or sodium tetrachloroaluminate (LiAlCl 4 or NaAlCl 4 , respectively) dissolved in liquid SO 2 are higher and lower, respectively than those of conventional organic electrolytes [ 4 – 6 ]. Copper(II) chloride (CuCl 2 ) has been used as a cathode material for SO 2 -in-salt battery systems because it is inexpensive and its high specific capacity is comparable to that of the current LIB cathode materials [ 7 , 8 ]. In addition, the voltage difference between the discharge and charge curves (Δ V ) for the CuCl 2 -to-CuCl phase transition in SO 2 -in-salt secondary battery systems is negligible (approximately 0.11 V at 0.25 C) compared with those of other battery systems [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Reversible flowering of CuO nanoclusters via conversion reaction for dual-ion Li metal batteries

Lee

Hwang

et al. 2023

Nano Convergence

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Dual-ion Li metal batteries based on non-flammable SO2-in-salt inorganic electrolytes ( Li–SO2 batteries) offer high safety and energy density. The use of cupric oxide (CuO) as a self-activating cathode material achieves a high specific capacity with cost-effective manufacturing in Li–SO2 batteries, but its cycle retention performance deteriorates owing to the significant morphological changes of the cathode active materials. Herein, we report the catalytic effect of carbonaceous materials used in the cathode material of Li–SO2 batteries, which act as templates to help recrystallize the active materials in the activation and conversion reactions. We found that the combination of oxidative-cyclized polyacrylonitrile (PAN) with N-doped carbonaceous materials and multi-yolk-shell CuO (MYS-CuO) nanoclusters as cathode active materials can significantly increase the specific capacity to 315.9 mAh g− 1 (93.8% of the theoretical value) at 0.2 C, which corresponds to an energy density of 1295 Wh kgCuO−1, with a capacity retention of 84.46% at the 200th cycle, and the cathode exhibited an atypical blossom-like morphological change.

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“…Metal halide materials (MX n ; M: Fe, Cu, Ni, etc. and X: F, Cl, and Br) deserve to be regarded as alternative high‐capacity electrode materials to replace conventional intercalation‐based metal oxide materials for Na rechargeable batteries owing to their high theoretical capacity combined and low cost . Among them, NiCl 2 is now being used as a cathode material for ZEBRA (Zero Emission Battery Research Activities) battery, which is one of the most promising sodium rechargeable battery systems for large‐scale power storage for renewable energies.…”

Section: Introductionmentioning

confidence: 99%

High Performance Na–CuCl₂ Rechargeable Battery toward Room Temperature ZEBRA‐Type Battery

Kim

Jeong

Kim

et al. 2016

Advanced Energy Materials

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Despite a recent increase in the attention given to sodium rechargeable battery systems, they should be further advanced in terms of their energy density and reliability to successfully penetrate the rechargeable battery market. Here, a new room temperature ZEBRA-type Na-CuCl 2 rechargeable battery is demonstrated that employs CuCl 2 cathode material and nonfl ammable inorganic liquid electrolyte. The cathode delivers a high energy density of ≈580 Wh kg −1 with superior capacity retention over 1000 cycles as well as a high round-trip effi ciency of ≈97%, which has never been obtained in an organic electrolyte system and high-temperature ZEBRA-type battery. These excellent electrochemical performances are mainly attributed to the use of the SO 2 -based inorganic electrolyte, which guarantees a reversible conversion reaction between CuCl 2 and CuCl with NaCl. It is also demonstrated that the proposed battery chemistry can be extended to other copper halide materials including CuBr 2 and CuF 2 , which also show highly promising battery performances as cathode materials for the Na-Cu halide battery system.

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Inorganic Electrolyte Li / CuCl2 Rechargeable Cell

Cited by 21 publications

References 5 publications

Suppression Mechanism for Dissolution of Conversion-Type CuCl₂ Electrode in LiPF₆/methyl Difluoroacetate Electrolyte

Suppression Mechanism for Dissolution of Conversion-Type CuCl₂ Electrode in LiPF₆/methyl Difluoroacetate Electrolyte

Reversible flowering of CuO nanoclusters via conversion reaction for dual-ion Li metal batteries

High Performance Na–CuCl₂ Rechargeable Battery toward Room Temperature ZEBRA‐Type Battery

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Inorganic Electrolyte Li / CuCl2 Rechargeable Cell

Cited by 21 publications

References 5 publications

Suppression Mechanism for Dissolution of Conversion-Type CuCl2 Electrode in LiPF6/methyl Difluoroacetate Electrolyte

Suppression Mechanism for Dissolution of Conversion-Type CuCl2 Electrode in LiPF6/methyl Difluoroacetate Electrolyte

Reversible flowering of CuO nanoclusters via conversion reaction for dual-ion Li metal batteries

High Performance Na–CuCl2 Rechargeable Battery toward Room Temperature ZEBRA‐Type Battery

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Product

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Suppression Mechanism for Dissolution of Conversion-Type CuCl₂ Electrode in LiPF₆/methyl Difluoroacetate Electrolyte

Suppression Mechanism for Dissolution of Conversion-Type CuCl₂ Electrode in LiPF₆/methyl Difluoroacetate Electrolyte

High Performance Na–CuCl₂ Rechargeable Battery toward Room Temperature ZEBRA‐Type Battery