期刊論文
| 學年 | 112 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2023-10-23 |
| 作品名稱 | Unveiling the Evolution of LiCoO2 beyond 4.6 V |
| 作品名稱（其他語言） | |
| 著者 | Zixin Wu; Guifan Zeng; Jianhua Yin; Chao-Lung Chiang; Qinghua Zhang; Baodan Zhang; Jianken Chen; Yawen Yan; Yonglin Tang; Haitang Zhang; Shiyuan Zhou; Qingsong Wang; Xiaoxiao Kuai; Yan-Gu Lin; Lin Gu; Yu Qiao; Shi-Gang Sun |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | ACS Energy Letters 8(11), 4806-4817 |
| 摘要 | The working mechanism of LiCoO2 beyond 4.6 V presents complicated issues: (1) the ambiguous multistructural evolutions, (2) the vague O-related anionic redox reactions (ARR) triggered by the overlap Co–O bands, and (3) the serious electrode–electrolyte interface stability challenges. The intricate relationship among them turns into a classic “chicken and egg” conundrum, leading to a confusing evolution process of LiCoO2. Herein, from an ingenious perspective combining stacking faults and nonhomogeneous delithiation, we originally demonstrate a series of intergrowth phase evolutions from O3 to O1, passing through the so-called H1-3 phase. Moreover, in sharp contrast to the O–O dimer formed in a traditional Li-rich layered cathode, a moderate and stable arrangement of oxidized lattice oxygen is unveiled as a manifestation of ARR in LiCoO2. Additionally, we clarify the nature that dehydrogenation and hydrolysis of electrolyte trigger the chain decompositions and intensify the surface degradation. |
| 關鍵字 | Chemical structure; Electrodes; Electrolytes; Oxygen; Phase transitions |
| 語言 | en_US |
| ISSN | 2380-8195 |
| 期刊性質 | 國外 |
| 收錄於 | SCI SSCI Scopus |
| 產學合作 | |
| 通訊作者 | Xiaoxiao Kuai; Yan-Gu Lin; Lin Gu; Yu Qiao |
| 審稿制度 | 否 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/127782 ) |