Manipulating Charge‐Transfer Kinetics of Lithium‐Rich Layered Oxide Cathodes in Halide All‐Solid‐State Batteries (Adv. Mater. 5/2023)

Yu, Ruizhi; Wang, Changhong; Duan, Hui; Jiang, Ming; Zhang, Anbang; Fraser, Adam; Zuo, Jiaxuan; Wu, Yanru; Sun, Yipeng; Zhao, Yang; Liang, Jianwen; Fu, Jiamin; Deng, Sixu; Ren, Zhimin; Li, Guohua; Huang, H. Z.; Li, Ruying; Chen, Ning; Wang, Jiantao; Li, Xifei; Singh, Chandra Veer; Sun, Xueliang

doi:10.1002/adma.202370029

Cited by 13 publications

(24 citation statements)

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“…Encouragingly, the LRMO|LLZTO|3D‐FLGN15 full cell has an ultra‐high discharge specific capacity of 245 mAh g −1 at 0.1 C (Figure S17). More importantly, it has a discharge specific capacity of 170 mAh g −1 at 1 C (1 C=250 mAh g −1 ), which is much higher than that of the LRMO‐based SSB at 1 C reported in the literature so far [18–19] (Figure 3f), and is also comparable to that of the pure LE cell (Figure S18), showing a very good rate performance (Figure 3a–b). It is interesting to note that after the rate test, the LRMO|LLZTO|3D‐FLGN15 full cell can achieve a capacity recovery rate of 99.6 % (Figure 3a), which is much higher than the pure LE cell (95.9 % capacity recovery rate, Figure S18).…”

Section: Resultsmentioning

confidence: 70%

“…As shown in Figure 3c–d, the LRMO|LLZTO|3D‐FLGN15 full cell was cycled 200 cycles at 0.2 C without capacity decay (≈100 %) demonstrating excellent cycling performance, which is much higher than that of other Li‐rich oxide cathode‐based SSB reported in the literature (Figure 3e). [18–20] In addition, it should be noted that the capacity retention of LRMO in LE‐based cells was seriously decreased to 65.4 % after 150 cycles (Figure S19). Voltage decay is one of the most critical issues for Li‐rich cathode in LE‐based batteries, which is largely associated with irreversible OAR and structure degradation [48] .…”

Section: Resultsmentioning

confidence: 99%

“…But the unique oxygen anion redox (OAR) and the high operating voltage (4.8 V) of LRMO cathode, and the critical issues such as oxygen release, irreversible phase transition and increased interfacial resistance seriously restrict their application in solid‐state batteries (SSB). To the best of our knowledge, there are only a few reports on the evaluation of LRMO cathode materials in SSB [18–20] . Pan et al.…”

Section: Introductionmentioning

confidence: 99%

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Achieving the High Capacity and High Stability of Li‐Rich Oxide Cathode in Garnet‐Based Solid‐State Battery

Chen,

Zhang,

Wong

et al. 2023

Angew Chem Int Ed

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Solid‐state batteries (SSBs) based on Li‐rich Mn‐based oxide (LRMO) cathodes attract much attention because of their high energy density as well as high safety. But their development was seriously hindered by the interfacial instability and inferior electrochemical performance. Herein, we design a three‐dimensional foam‐structured GaN−Li composite anode and successfully construct a high‐performance SSB based on Co‐free Li1.2Ni0.2Mn0.6O2 cathode and Li6.5La3Zr1.5Ta0.5O12 (LLZTO) solid electrolyte. The interfacial resistance is considerably reduced to only 1.53 Ω cm2 and the assembled Li symmetric cell is stably cycled more than 10,000 h at 0.1–0.2 mA cm−2. The full battery shows a high initial capacity of 245 mAh g−1 at 0.1 C and does not show any capacity degradation after 200 cycles at 0.2 C (≈100 %). The voltage decay is well suppressed and it is significantly decreased from 2.96 mV/cycle to only 0.66 mV/cycle. The SSB also shows a very high rate capability (≈170 mAh g−1 at 1 C) comparable to a liquid electrolyte‐based battery. Moreover, the oxygen anion redox (OAR) reversibility of LRMO in SSB is much higher than that in liquid electrolyte‐based cells. This study offers a distinct strategy for constructing high‐performance LRMO‐based SSBs and sheds light on the development and application of high‐energy density SSBs.

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Section: Resultsmentioning

confidence: 70%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Achieving the High Capacity and High Stability of Li‐Rich Oxide Cathode in Garnet‐Based Solid‐State Battery

Chen,

Zhang,

Wong

et al. 2023

Angew Chem Int Ed

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“…The prepared SSBs with the improved LRMO cathode have a capacity of 230.7 mA h g À1 at 0.1C as well as long cycling stability over 400 cycles. 257 But the LRMO/Li 3 InCl 6 interface was severely damaged by the phase transition and reactive oxygen species released by LRMO. To solve this problem, Li et al introduced a uniform LiNbO 3 coating.…”

Section: Binder and Electrolyte Additivementioning

confidence: 99%

Recent advances in lithium-rich manganese-based cathodes for high energy density lithium-ion batteries

Chen¹,

Sun²

2023

Chem. Commun.

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“…As a result, the released oxygen combines with the organic electrolyte, [5] causing structural change. This process leads to negative effects by lowering the initial coulombic efficiency (ICE), worsening the interface diffusion dynamics, decreasing the rate capacity and attenuating the voltage [6] . Moreover, the serious Jahn–Teller (J–T) effect [7] of trivalent metal ions and undesirable cathode‐electrolyte interfacial reactions owing to high working voltage in LRLOs are the underlying determinants for the metal dissolution [8] .…”

Section: Introductionmentioning

confidence: 99%

Semi‐Metallic Superionic Layers Suppressing Voltage Fading of Li‐Rich Layered Oxide Towards Superior‐Stable Li‐Ion Batteries

Wang,

Yao,

Zhu

et al. 2023

Angew Chem Int Ed

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Li‐rich layered oxides (LRLOs) with greater specific capacity density are constrained by voltage attenuation and inferior rate performance because of irreversible oxygen release, metal dissolving and poor lithium‐ion transport capacity. Herein, a simple surface modification is designed to solve the performance degradation and structural collapse of LRLOs. Combining experiments with density functional theory (DFT) calculations, a semi‐metallic LiMn2O4‐like structure (LMO) with spin‐polarized conducting electrons, is introduced to the surface of the cathode restrains the activated surficial lattice oxygen ions by its stable oxygen vacancies. Additionally, Ni doping results in a fast‐ion conductor Li0.8Nb0.96Ni0.2O3 structure (LNO) with lowered lithium ions diffusion barrier, which is tightly conjugating to substrate and synergistically reinforces the Li diffusion path through the cathode‐electrolyte interphase. Moreover, Mn dissolution is successfully relieved due to the decrease in Mn concentration in the coating layers. As a result, the modified material (LRLO@LMO@LNO) exhibits an ultra‐high discharge capacity of 120.4 mAh g−1 even at 10 C with a very small discharge voltage attenuation of 313 mV after 600 cycles (0.52 mV per cycle) at 1 C. Undoubtedly, this method discloses a simple and effective approach to promote the practical utilization of high‐energy‐density.

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Manipulating Charge‐Transfer Kinetics of Lithium‐Rich Layered Oxide Cathodes in Halide All‐Solid‐State Batteries (Adv. Mater. 5/2023)

Cited by 13 publications

References 0 publications

Achieving the High Capacity and High Stability of Li‐Rich Oxide Cathode in Garnet‐Based Solid‐State Battery

Achieving the High Capacity and High Stability of Li‐Rich Oxide Cathode in Garnet‐Based Solid‐State Battery

Recent advances in lithium-rich manganese-based cathodes for high energy density lithium-ion batteries

Semi‐Metallic Superionic Layers Suppressing Voltage Fading of Li‐Rich Layered Oxide Towards Superior‐Stable Li‐Ion Batteries

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