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Nickel‐rich layered oxides are one of the most promising cathode candidates for next‐generation high‐energy‐density lithium‐ion batteries. However, due to similar ion radius between Li+ and Ni2+(0.76 and 0.69 Å), the Li+/Ni2+ mixing phenomenon seriously hinders the migration of Li+ and increases kinetic barrier of Li+ diffusion, resulting in limited rate capability. In this work, the introduction of Ce4+ to effectively improve electrochemical properties of Ni‐rich cathode materials is proposed. The LiNi0.8Co0.15Al0.05O2 (LNCA) is modified with an additional precursor oxidization process using an appropriate amount of (NH4)2Ce(NO3)6. The Ce(NO3)62− easily obtains electrons and generates reduction reactions, while Ni(OH)2 is prone to electron loss and oxidation reaction. The participation of (NH4)2Ce(NO3)6 can promote the oxidation of Ni2+ to Ni3+, thereby reducing the Li+/Ni2+ mixing and increasing the structural stability of LNCA samples. Ce4+ cation doping can impede Li+/Ni2+ mixing of LNCA cathode materials upon the long‐term cycles. Both rate performance and long‐term cyclability of Li[Ni0.8Co0.15Al0.05]0.97Ce0.03O2 (LNCA‐Ce0.03) sample are significantly improved. Besides, a practical pouch cell based on the cathode presents sufficient gravimetric energy density (≈300 Wh kg−1) and cycling stability (capacity retention of 81.3% after 500 cycles at 1 C).

With the development of the internet and mass media, emojis are not only frequently used in daily internet-based communication but have become important marketing tools. Based on the relevance theory, this paper will take emojis in advertising as the research object. From the perspective of implicit/explicit information, contextual construction, and implicated conclusion, it aims to explore how this multimodal resource in advertisement helps the audience to get the advertiser’s communicative intentions and obtain optimal relevance. This study concludes that emojis serve as a tool of ostensive communication, conveying the message with the presumption of relevance; emojis help consumers construct new cognitive context; and they are complementary with other modalities, which increase the ostension of information and save cognitive effort, and promote the audience find the optimal relevance path.