China accounts for up to 95%, and another project goes into production!

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Update time : 2024-01-19 13:38:52
On January 11, Yunnan Shanshan New Materials Co., LTD. (hereinafter referred to as "Shanghai Shanshan"), a wholly-owned subsidiary of Shanghai Shanshan Lithium Battery Technology Co., LTD. (hereinafter referred to as "Yunnan Shanshan"), held an annual output of 300,000 tons of lithium ion battery negative electrode integration base in Kunming Anning Industrial Park, Yunnan Province. It marks the official operation of the world's largest lithium battery negative material integration factory.
The total investment of the project is about 12 billion yuan, which is built in two phases. The scale, process, technology and cost competitiveness are leading in the world, and it is the largest single negative electrode material integration base in the current industry. The project involves six production processes of "grinding - modification - graphitization - secondary coating - carbonization - finished product processing" to produce artificial graphite anode materials for multi-specification lithium batteries, which can be used in the field of power batteries and energy storage batteries for new energy vehicles. The main customers are LGC, Ningde Times, BYD, SKON, Vision Power and other domestic and foreign leading enterprises.

Different types of anode materials have their own advantages

As one of the four key materials of lithium battery (positive electrode, negative electrode, electrolyte and diaphragm), the negative electrode material plays an important role in the storage and release of energy as a carrier of lithium ions and electrons in lithium batteries, which directly affects the energy density, cycle life, safety, fast charging capacity and other performance of lithium batteries, accounting for 5% to 15% of the cost of lithium batteries.
Negative materials can be divided into carbon and non-carbon negative materials two categories: carbon negative materials including graphite, hard carbon, soft carbon and graphene, among which graphite materials can be further divided into natural graphite, artificial graphite and mesophase carbon microspheres; Non-carbon anode materials include titanium based materials, silicon based materials, tin based materials, nitrides and so on.


At present, natural graphite and artificial graphite occupy more than 90% of the negative electrode materials market share. Compared with other materials, artificial graphite has good cycle performance, superior safety and mature process, easy access to raw materials and low cost, which is a very ideal choice. The core problem of the graphite negative electrode is that the theoretical upper limit of the energy density of the graphite negative electrode material is 372mAh/g, and the products of the industry head company can achieve the energy density of 365mAh/g, approaching the theoretical limit, the future improvement space is extremely limited, and it is urgent to find the next generation of substitutes.
 
Among the new generation of negative electrode materials, silicon-based negative electrode is a hot player. It has a very high energy density, and the theoretical capacity ratio can reach 4200mAh/g, far more than graphite materials. In particular, with the mass production of Tesla 4680 large cylinder batteries, the commercial application of silicon-based negative electrode is accelerated, and it is expected that there will be large-scale production capacity release of silicon-based negative electrode materials in 2023. However, as a negative electrode material, silicon also has serious defects, and lithium ion embedding will lead to serious volume expansion, damage the battery structure, and cause a rapid decline in battery capacity.
 
One of the current popular solutions is to use silicon-carbon composite materials, silicon particles as the active substance, to provide lithium storage capacity, carbon particles are used to buffer the volume change of the negative electrode during the charge and discharge process, and improve the conductivity of the material, while avoiding the agglomeration of silicon particles in the charge and discharge cycle.
 
Based on this, silicon carbon anode materials are considered to be the best technical route with the best prospects, and gradually gain the attention of enterprises in the industrial chain. However, compared with the graphite anode, the silicon carbon anode in addition to the processing technology is still immature, the higher cost is also an obstacle. The current market price of silicon carbon anode materials is more than 150,000 yuan/ton, which is twice that of high-end artificial graphite anode materials. In the future, battery manufacturers will also face similar cost control problems with positive electrode materials.

The industry concentration is high

From the perspective of global competition, China's lithium battery negative manufacturers have a high market share and a strong position in the global lithium supply chain. According to Gaogong lithium battery statistics, China's lithium battery anode material shipments accounted for more than 70% of the global market share, and the rest are mainly Japan, South Korea and other countries. The main suppliers of domestic lithium battery anode materials are Betrie, Shanshan shares, Pu Tai Lai, Kaijin Energy, Zhongke Electric, Xiang Fenghua, Shangtai Technology, etc., the head company occupies a dominant position in the development of the industry with the advantages of products, customers, production capacity and cost, and has formed a more stable "three or four small" competition pattern. Among them, Betri, Shanshan Shares, Jiangxi Zichen and other negative leading enterprises have been ranked in the first echelon, firmly occupying the top three positions in the industry, Zhongke Electric, Kaijin Energy, Shangtai Technology, Xiang Fenghua with cost-effective advantages and battery manufacturers deeply bound, high market share, ranked in the second echelon. At present, the negative electrode material link has not yet come out of the absolute head enterprise, there is no absolute gap between the "three" enterprises, and the "four small" market share is similar. The main suppliers of foreign lithium battery anode materials are Hitachi Chemical, Mitsubishi Chemical and South Korea Pohang Chemical.
According to Xinueng information statistics, the global output of negative electrode materials in 2023 is 1,762,100 tons, an increase of 20%. The global market share of China's anode material production has further increased, rising from 92% in 2021 to 97.3%. In terms of shipments, the global shipments were 1,679,500 tons, of which China accounted for 95%. Subject to the characteristics of high production energy consumption and domestic technology-intensive, overseas expansion is much slower than domestic, it is expected that the market share of domestic enterprises will continue to rise in the future, and Chinese enterprises have obvious advantages.
At the same time, with the rapid decline in the price of artificial negative materials, the cost-effective advantage is highlighted again - in 2023, the global penetration rate of artificial negative materials has further increased to 84%, which is the most mainstream application in the current market. In the short term, the permeability of natural negative electrode materials is under pressure. From the enterprise dimension, Shanghai Shanshan artificial negative electrode material won the first place, accounting for 19%.
From the perspective of specific enterprises, in 2023, the performance of Betrie, Shanghai Shanshan, and Jiang Xi Zichen CR3 enterprises is still eye-catching, and the global market share of Betrie negative electrode materials is about 22%, ranking first in the global total for 13 consecutive years. Guangdong Dongdao, Hebei Kuntian, Jinhui Energy, carbon One, Qingdao Keshuo, Keda new materials in recent years have also broken the annual output of 20,000 tons of dark horses. In terms of industry concentration, TOP3 enterprises accounted for 48.5%, and TOP6 enterprises accounted for 74.3%, both slightly increased from the previous year, and the overall pattern of the lithium negative electrode industry changed little.