◇ The demand of high performance such as high capacity, high safety are increasing with the rapid growth of the xEV and ESS markets and many researcher are doing various R&D activity in oder to keep up with the situation. The realistic method is to increase the nickel content as a way to achieve high capacity in the case of three composite cathode of nickel-cobalt-manganese. But the stability is drastically reduced in this case.
◇ The basic method among the various studies to solve these problems is to stabilize the shrinkage and expansion crystals in the charge and discharge of the battery by adding various doping substances such as Ti, Zr, and W in the cathode.
◇ Currently, a common method of adding the above-mentioned doping substances in high nickel cathode materials is to add nano-sized oxide elements when mixed with lithium at sintering process, which has the disadvantage of increasing costs due to expensive materal pre-processing and relatively long reaction times.
◇ In order to solve this disadvantage, rov Co., Ltd completed patent registration [10-2101392] through developing a technology by distributing nano sized oxide elements in precursors. This technology enables us to make a variety of technical changes that reflect customer needs.
◇ By applying this technology, it is possible to make NCM precursors with Zirconium and Titanium dispersed, NCA precursors with Aluminum dispersed, and high nickel precursors with tungsten dispersed. We ask for your attention.
