Since the formulation and development of the national standard for low-speed electric vehicles, the biggest contradiction for low-speed electric vehicles is whether the country's upcoming standards can meet market demand. Let’s call it “market theory”. For example: the cost of safety and technical standards will rise, and consumers will not buy it; about 95% of current low-speed electric vehicles use lead-acid batteries, and rejecting lead-acid batteries is a waste of money.
Low temperature lithium iron phosphate battery 3.2V 20A -20℃ charging, -40℃ 3C discharge capacity ≥70%
Charging temperature: -20~45℃ -Discharge temperature: -40~+55℃ -40℃ Supports maximum discharge rate: 3C -40℃ 3C discharge capacity retention rate ≥70%
In fact, the dispute over battery technology routes first appeared in the field of new energy buses. In 2016, Zhang Xiangmu, director of the Equipment Industry Department of the Ministry of Industry and Information Technology, said that because the safety development for buses was not yet mature, the use of ternary lithium-ion batteries in passenger buses was suspended. Enter the catalog of recommended models for the promotion and application of new energy vehicles. At this point, the debate over the battery technology route for new energy buses has also surfaced.
However, the focus of the discussion at that time was: whether ternary lithium-ion batteries are safe or not; the focus of the discussion on lead-acid battery pollution this time is: when it comes to battery technology, the market should be the judge.
The author believes that the focus of the dispute between the two is fundamentally different, which makes people sigh: the market is just a brick, and it can be moved wherever it is needed. It guides the important pollution issue of lead-acid batteries to the level of market competition for discussion, but in fact there is no inevitable connection between the two.
Battery technology roadmap: an unsolvable knot?
"Market Theory" points out that about 95% of current low-speed electric vehicles use lead-acid batteries. Rejecting lead-acid batteries is a waste of money, so the use of lead-acid batteries should not be banned.
Low temperature high energy density 18650 3350mAh-40℃ 0.5C discharge capacity ≥60%
Charging temperature: 0~45℃ Discharge temperature: -40~+55℃ Specific energy: 240Wh/kg -40℃ Discharge capacity retention rate: 0.5C Discharge capacity ≥ 60%
The environmental protection department and the traffic control department believe that when promoting low-speed electric vehicles, the use of lead-acid batteries may be ten times that of current cars. Without a complete recycling system and lead pollution control, bad consequences may occur.
Yang Yusheng, an academician of the Chinese Academy of Engineering, believes that every fuel vehicle uses a lead-acid battery, without exception, and there should be no double standards for low-speed electric vehicles. Fu Yuwuze, chairman of the Society of Automotive Engineering of my country, believes that lead-acid batteries can be used for a period of time, and giving a certain transition time is the best choice.
Some people in the industry pointed out that the current problem with lead-acid batteries is not pollution, but how to supervise them. The author agrees with the above point of view, but unfortunately, lead exceeds the standard in many places across the country, and the management of lead-acid batteries has just begun. If lead-acid batteries are used in large quantities, it will undoubtedly make things worse. Perhaps one of the keys for low-speed electric vehicle companies to use lead-acid batteries is to explore how to effectively avoid pollution problems at this stage, or to gradually open up the use of lead-acid batteries while the management of lead-acid batteries is gradually improved. .
According to industry insiders, if all low-speed electric vehicles are replaced with lithium-ion batteries in the future, the average cost of each vehicle will be at least 5,000 yuan higher. The author believes that although the use of lithium-ion batteries will increase product costs, if the company adjusts its product strategy in a timely manner and upgrades its products, market demand may not be greatly affected.
Popular recommendation
AA Ni-MH battery.Polymer lithium-ion battery technology
2023-10-09Advantages and disadvantages of lithium battery
2022-11-16Lithium battery development
2022-11-15LR1130 battery.Wireless charging is often exposed to the basic physical knowledge of the two technol
2023-10-08AG5 battery.One article tells you the key points of the 18650 lithium battery pack process
2023-10-09AG Coin battery
2022-06-18AG Coin TV environmental impact
2022-06-18LR41 battery!Chinese and foreign R&D teams synthesize "double modification" cathode ma
2023-10-0818650 battery pack 3.7v.How to maintain 18650 lithium battery.
2023-10-13r03 battery!my country has made a breakthrough in solid-state lithium battery interface issues, prov
2023-10-08lithium ion battery cells 18650.Volkswagen will also hold a "Battery Day" and may release
2023-10-14Dry Battery!The balanced working principle of lithium iron battery protection chip and lithium batte
2023-10-08