A review: Modification strategies of nickel-rich layer structure cathode (Ni ≥ 0.8) materials for lithium ion power batteries

A Review of Degradation Mechanisms and Recent Achievements for Ni‐Rich Cathode‐Based Li‐Ion Batteries

“…Numerous efforts have been devoted to the performance improvement for Ni‐rich cathode‐base LIBs. [ 105,106 ] The current strategies primarily focus on modifying the cathode, anode, and electrolyte. For cathode materials, the proposed strategies can be divided into the following categories: 1) Applying novel synthesis methods to avoid side‐effects induced by conventional coprecipitation methods; 2) fabricating single‐crystallized primary particles in favor of mitigating inner stress during the (de)lithiation process; 3) tailoring highly ordered morphologies to inhibit microcracks propagation within the electrode particles; 4) introducing foreign ions (cations or anions) into the crystal lattice for structural stabilization of the host material; 5) coating protective layers onto the cathode surface to prevent HF attack from the electrolyte; and 6) synthesizing particles with elemental concentration gradient structure.…”

“…Elemental doping, including cation doping and anion doping, has been proven to significantly boost Ni‐rich cathodes’ structural and thermal stability. [ 106 ] Elemental doping can facilitate the performance of Ni‐rich cathodes as it inhibits the irreversible phase transitions during delithiation, especially under high voltage operation conditions. The electrochemically inactive nature of dopants can explain this behavior in the cathode crystal lattice, which provides strong chemical bonds.…”

Studies of Nickel-Rich LiNi0.85Co0.10Mn0.05O2 Cathode Materials Doped with Molybdenum Ions for Lithium-Ion Batteries

“…Recently, electric vehicles have already become a reality around the world, so development of power sources, which guarantee their long driving ranges and safety is critically important. Among these power sources, advanced lithium ion batteries (LIBs) are the most appropriate ones for electrochemical propulsion, since they may provide the necessary high energy density, cycle life, stability, and reasonable safety [1][2][3][4][5][6][7][8][9][10][11]. The limiting factor of energy content in LIBs are the positive electrodes (cathodes) and their improvement is much more effective compared to other parts of batteries to get high energy density [12].…”

Air Stability and Interfacial Compatibility of Sulfide Solid Electrolytes for Solid‐State Lithium Batteries: Advances and Perspectives

“…With the growing demand for energy storage, conventional lithium‐ion batteries will reach their performance limits, followed by more and more security issues [1–6] . Solid‐state lithium batteries have received widespread attention as a substitute for traditional lithium‐ion batteries due to their high‐safety and high‐energy density.…”

“…With the growing demand for energy storage, conventional lithium-ion batteries will reach their performance limits, followed by more and more security issues. [1][2][3][4][5][6] Solid-state lithium batteries have received widespread attention as a substitute for traditional lithium-ion batteries due to their highsafety and high-energy density. The solid electrolytes are not easy to leak, not flammable, and have a certain mechanical strength, which can inhibit the growth of lithium dendrites.…”