Will the cost of processing lithium battery packs drop in the future?

Will the processing cost of lithium battery packs decline in the future? The processing of lithium battery pack materials is divided into five parts, including cathode materials, anode materials, copper and aluminum foils, separators, and electrolytes. At present, the four components of diaphragm, electrolyte, cathode material, and anode material account for 85% of the cost of power lithium-ion batteries. The performance of the cathode material directly affects the performance of the lithium battery, and its cost directly determines the cost of the battery. Lithium battery pack is a new generation of green energy storage battery with excellent performance, and it has become one of the focuses of high-tech development. Lithium batteries have the following characteristics: high capacity, no memory effect, small size, wide temperature range, many cycles, and long service life. Can the cost reduction of lithium batteries be realized? With the decline of state subsidies for electric vehicles, the significance of the decline in the cost of lithium batteries for the development of the new energy industry has gradually become prominent. Lithium battery pack manufacturers should strive to reduce costs and actively respond to market competition without subsidies. In the past few years, the cost of lithium batteries has almost fallen by about half. As long as the battery cost is reduced to 100 US dollars/Kwh, the cost of electric vehicles will be basically close to that of fuel vehicles; the battery cost is reduced to 150 US dollars/Kwh, and electric vehicles have become more competitive with the addition of environmental protection concepts. In terms of energy storage, the cost of lithium iron phosphate batteries has been reduced from the current US$470/kWh to US$230/Kwh. Even without subsidies, battery energy storage can be profitable. There are several ways to reduce the cost of lithium battery packs: 1. Increase the size of lithium battery cells. A lithium battery pack is composed of hundreds of individual cells in series and parallel. The cells are the most important part of reducing the cost of lithium battery packs. At present, battery companies mainly improve the material system, enlarge the cell size, and increase the cell yield rate in terms of reducing the manufacturing cost of battery cells. In terms of increasing the size of the battery cell, whether it is square, cylindrical or soft pack batteries, there is a development trend of expanding the size of single cells. The advantage is that it is conducive to the increase of the energy density of the lithium battery system and the reduction of the number of cells, thereby reducing cost. 2. Lightweight structural parts As an important part of lithium battery packs and battery modules, battery cell shells, top covers, steel/aluminum shells, positive and negative electrode flexible connections, battery flexible connection bars and other lithium battery precision structural parts, although in The cost of power lithium-ion batteries is not large, but it has also become the focus of battery companies' demand for price reductions. At present, many lithium battery pack processing manufacturers are introducing new materials and optimizing structural design in 2018 to reduce the weight of new products by more than 20% compared with old products, and at the same time, further reduce manufacturing costs, thereby reducing the battery pack’s cost. overall costs. In addition to the above-mentioned structural parts, accessories such as boxes and wiring harnesses are also an important part of the cost that battery companies can directly reduce. 3. Compared with other materials, the price of BMS battery management system is more obvious. A number of BMS companies said that the cost of BMS only accounts for 5%-10% of the price of lithium battery packs. However, under the pressure of subsidy decline, BMS companies will also bear the pressure of price cuts. It is expected that the price of 2018 may be year-on-year. Decrease by more than 20%. 4. Improving automation efficiency. Lithium battery pack processing manufacturers improve the automated processing efficiency of production lines and reduce unit manufacturing costs through large-scale processing. It is also an effective way for power lithium-ion battery companies to reduce costs. At the same time, by improving the process and processing, realize intelligent and large-scale processing, improve the utilization rate of materials and the product qualification rate, and greatly reduce the processing cost of battery materials and battery PACK. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: Comparative analysis of ternary lithium battery and lithium iron phosphate battery