Scanning transmission electron microscopy: A review of high angle annular dark field and annular bright field imaging and applications in lithium-ion batteries<xref rid="cpb_27_6_066107_fn1" ref-type="fn">*</xref><fn id="cpb_27_6_066107_fn1"> <label>*</label> <p>Project supported by the National Basic Research Program of China (Grant No. 2014CB921002), the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB07030200), and the National Natural Science Foundation of China (Grant Nos. 51522212, 51421002, and 51672307).</p> </fn>

Scanning transmission electron microscopy: A review of high angle annular dark field and annular bright field imaging and applications in lithium-ion batteries* *

Project supported by the National Basic Research Program of China (Grant No. 2014CB921002), the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB07030200), and the National Natural Science Foundation of China (Grant Nos. 51522212, 51421002, and 51672307).

Tong Yu-Xin^{1, 2}, Zhang Qing-Hua^{1, †}, Gu Lin^{1, 2, ‡}

(color online) (a) SEM image of an FIB fabricated battery on a nanochip in the applied electric field, and (b) corresponding schemes. The LLZO electrolyte and electron transparent area of the LiCoO₂ cathode are highlighted with a red dashed line and a yellow dashed line trapezoid in (a). (c) and (d) The pristine LiCoO₂ ABF with the corresponding line profile and HAADF micrographs acquired at the red dashed line rectangular zone shown in (c) with both lithium and oxygen contrasts. The green, purple, and cyan balls are lithium, oxygen, and cobalt ions, respectively.^[65]