Nano-rods in Ni-rich layered cathodes for practical batteries.

Lithium transition metal oxide layers, Li[NiCo(Mn and/or Al)]O, are widely used and mass-produced for current rechargeable battery cathodes. Development of cathode materials has focused on increasing the Ni content by simply controlling the chemical composition, but as the Ni content has almost reached its limit, a new breakthrough is required. In this regard, microstructural modification is rapidly emerging as a prospective approach, namely in the production of nano-rod layered cathode materials.

Degradation Mechanism of Highly Ni-Rich Li[NiCoMn]O Cathodes with > 0.9.

A series of Ni-rich Li[NiCoMn]O ( = 0.9, 0.92, 0.

Microstructural Degradation of Ni-Rich Li[Ni Co Mn ]O Cathodes During Accelerated Calendar Aging.

Because electric vehicles (EVs) are used intermittently with long resting periods in the fully charged state before driving, calendar aging behavior is an important criterion for the application of Li-ion batteries used in EVs. In this work, Ni-rich Li[Ni Co Mn ]O (x = 0.8 and 0.