With the growing call for lithium battery recycling, we believe that these problems are still plaguing the development of the lithium battery recycling industry
First, the cost of secondary use is high. According to the relevant experts, according to the current technology and technology in China, the establishment of power lithium battery step use cost cost does not have a high advantage. In addition, along with the decay of power lithium batteries, the use of power lithium batteries will also be very greatly affected by the duration. The retired power lithium battery from recycling logistics transportation to identification and inspection, the indirect cost is high. Some industry insiders believe that such issues will become a doubt when choosing a new battery or gradient use battery.
Second, the lack of consistency of the battery. Since 2014, China carried out the first demonstration research project on the use of power lithium battery gradient to date, the issue of battery consistency has always been the key challenge faced in the whole process of the operation of the gradient use project. It is understood that the inconsistency of power lithium battery in capacity, internal resistance, voltage and other levels is closely related to the charging and discharging reaction principle of the battery itself. Previously, the Chinese Academy of Electricity authoritative experts to Xiaokang has indicated that "even through the thousands of selected retired batteries, in the construction of the gradient use of energy storage system, still can not avoid the situation of the battery consistency in the operation of the system again discrete variables."
Third, the key technology is not the same. Some authoritative experts indicate that "some people think that the energy storage battery is placed there and not moving, whether it is not so high technical standards. In fact, from a different perspective, the technical standards of some levels of energy storage batteries are likely to be higher." There are also industry insiders believe that the future of new energy electric vehicles and energy storage end for the different needs of the battery, new energy electric vehicles tend to have a high efficiency energy density of the power lithium battery, while the energy storage end is more focused on having a high cycle life of the battery, and thus the key technology of the power lithium battery and energy storage battery will be separate. And for the future ternary power lithium batteries used in energy storage, whether there are safety risks and whether to ensure its reliability and other uncertainties, there are still some doubts.
Fourth, the value analysis is not uniform. At this stage, the pricing of retired power lithium batteries on the market spans a wide range, and there is no standard specification for the identification of the relative residual value of retired batteries. Authoritative experts from the South China Electric Power Research Institute believe that for the evaluation and valuation of a battery (or battery pack), the specific remaining storage capacity, health conditions, the estimated number of remaining cycles and the whole life cycle discharge and other level of data, the market value of retired lithium batteries has a relatively direct impact. Today, for how to identify the use value of retired batteries, car manufacturers, users, recycling agencies, energy storage power plants and other parties have not yet reached a consensus on the use value.
Multi-faceted layout, forge ahead
Although there are many objections and confusions to the use of power lithium battery in the gradient, the overall industry has never stopped moving forward in this direction, and keeps breaking through and growing. Many companies are slowly realizing the importance of power lithium battery gradient use for China's new energy vehicle industry, successively laying out at the level of gradient use, and forging ahead amidst controversy.
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