-(7)Development Status and Forecast of Automotive Power Lithium Batteries in China (1)

(7)Development Status and Forecast of Automotive Power Lithium Batteries in China (1)
author:enerbyte source:本站 click204 Release date: 2023-10-19 09:10:04
abstract:
Overall, the important advantages of cylindrical batteries are relatively good product consistency and relatively cheaper product prices (due to higher levels of automation in production). The important issue is that the battery pack contains a large number of cells and has high requirements f...

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Overall, the important advantages of cylindrical batteries are relatively good product consistency and relatively cheaper product prices (due to higher levels of automation in production). The important issue is that the battery pack contains a large number of cells and has high requirements for module capabilities. The advantages and disadvantages of square batteries and flexible polymer batteries are exactly opposite to those of cylindrical batteries. It should be mentioned that due to the extensive application of the 18650 cylindrical battery in both the consumer electronics market and the small power lithium battery market (such as electric bicycles, electric tools, etc.), some battery manufacturers, in order to reduce costs or improve recycling value, produce cylindrical batteries used in the new energy vehicle market on the same platform as those used in these markets, and even use the same production process, The safety hazards caused cannot be ignored.

1.4 Current Supply Status of Battery Products 1 (by Battery Type)

It is still the same as above, based on the battery type and product form. In terms of battery types, lithium titanate batteries will still be listed separately. At present, the lithium titanate battery market is absolutely monopolized by two manufacturers, Weihong Power and Zhuhai Yinlong, with a market share of over 99% in 2015. In addition to these two manufacturers, companies such as Anhui Tiankang, Sichuan Xingneng, and Mengguli are also actively developing the lithium titanate battery market, and a small number of products have been launched on the market. However, in this segmented market, the brand reputation and technical capabilities accumulated through years of hard work by Weihong Power and Zhuhai Yinlong may make it difficult for other battery manufacturers to match them. Gree Group acquired Zhuhai Yinlong for a skyrocketing price of 13 billion yuan, which is precisely what it has in mind.

The important contradiction faced by the further development of new energy vehicles is the low energy density of batteries, which makes it difficult to meet demand. Due to the significantly lower energy density of lithium titanate batteries compared to batteries using carbon based negative electrode materials, there is not much room for improvement in theory. Therefore, despite its advantages such as long life, high safety, and high-power charging and discharging, it is destined to be a niche market and difficult to become a mainstream battery product in the new energy vehicle market. In addition, the monopoly pattern in this market has already formed, and it is not easy to squeeze in again. The vast majority of battery manufacturers still focus on the route of carbon negative electrode materials. On the premise that the negative electrode is determined as a carbon based material, the important choices for the positive electrode are lithium iron phosphate or ternary/manganese based materials.

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