Lead-acid batteries have been used in submarines since World War II. However, they suffer from low energy storage capacity, slow charging, weak power output, short lifespan and toxic fume generation. In contrast, lithium-ion batteries have a superior energy density, faster charge, greater discharge speed and longer battery life.
However, lithium-ion batteries suffer from thermal runaway and fire risk, which is particularly acute in submarines, One overheating cell can cause a chain reaction of thermal runaway failures in the entire battery bank, leading to catastrophic fires, it said.
Lead researcher Wang Fang said that safety solutions in lithium-ion technology dervived from extensive development in China’s electric vehicle industry have been discovered, mitigating some of the earlier risks, the South China Morning Post said.
“After solving these problems, the replacement of lead-acid batteries with lithium batteries in conventional submarines is just around the corner,” Feng notes.
The research team said that using low-cost, readily available iron and phosphate can replace the usual but dangerous nickel and cobalt combination in lithium-ion batteries, improving safety without compromising performance.
Li Ming, general manager of Anhui Jianghuai Automobile Group Corp, last month that the latest US chip and chip-making technology bans have not yet had a big negative impact on Chinese automakers but that the sanctions would slow the growth of China’s auto sector over the long run.
He said while global automakers focus more on self-driving vehicles in the coming decade, Chinese automakers will lose their current advantage due to a lack of high-end 5-7nm chips.
He said if the US expanded its current export ban to cover auto chips, namely 28nm chips, Chinese automakers would be seriously hurt as they bought 95% of their chips from international chip producers. He said Chinese chip makers were still lagging well behind their global peers in overall competitiveness.
GM Shanghai literally saved GM around time the US was bailing it out in the middle of 2008 financial crisis. GM Shanghai, once upon a time, was more profitable and producing more cars than VW Shanghai. But GM never gives its Shanghai unit enough autonomy to run the local business. Mary Barra says all the right things about EV in public media. Yet GM does not have any competitive EV portfolios to compete against new players like Tesla and BYD or even old players like VW. Like other technological transitions before EV, old established giants like GM, Ford, Stellantis (motley of Chrysler and Fiat etc.) are withering in a slow motion before our eyes. It would take extraordinary figures like Lou Gerstner to transform those hopeless old business models.GM is massive in China. China can easily retaliate like what they did to hyundai and kia
On a side note, GM has pushed back their plans to make 400k EVs by end of 2023 by 6 months to end of H1 2024
I won't be surprised if BYD ends up producing more in a month than GM's 2.5 year goal
When BYD is put on the SDN list, BYD will lose access to the USD network. BYD will have trouble getting letter of credits (for selling cars across borders), lose access to all its USD bank accounts, can’t send money abroad to pay suppliers or its oversea employees, no more access to its assets in the US….Again, sanctioning and putting on SDN are two different things. I just explained a whole host of reasons why BYD is fully sanction proof. It doesn't look like you are even bothering to respond to all the points I put there. The day that America puts BYD on SDN list is the day that China/America have fully decoupling and we are down to 2 worlds that don't interact with each other. Even in that world, BYD will dominate in the sphere where it can sell cars and other automakers will be non operational due to their reliance on Chinese supply chain.
This should really belong to the conventional submarine thread. I'm posting here to show that China's lead in EV industry and its supply chain can translate to advance and lead in military.
I wouldn't underestimate the risks of US banning auto chips and related tools and equipment. It doesn't matter what mechanism they would employ. They will find the way. The US is now in a state of constantly looking for ways to "stunt" China's advances and growing power in important technologies and industries, with or without potential military applications. The military-civilian infusion is already a ready excuse for any bans.
In fact, this risk has now been discussed in the media.
LG batteries in a submarine. This is going to end well...In contrast, South Korea uses nickel and cobalt but has more safety features.
LG batteries in a submarine. This is going to end well...
Yeah, I know about Chinese LFP batteries. I'm just imagining the fate of a ROK submarine with Samsung Galaxy batteries.That's for SK. Meanwhile, Chinese EV manufacturers have invested in iron and phosphate batteries. They're in mass production and usage in Chinese market now. Their safety is proven.
"The research team said that using low-cost, readily available iron and phosphate can replace the usual but dangerous nickel and cobalt combination in lithium-ion batteries, improving safety without compromising performance.
According to industry data cited by the South China Morning Post, the Chinese market’s number of electric vehicles using iron phosphate battery technology exceeds those using nickel-cobalt batteries."
I prefer to debate based on the points that are raised. US can do whatever they want, but China can do the same in support of BYD.You speak as if you know this with 100% certainty but in fact Vincent makes sense, it’s you that’s not listening. Since becoming a moderator you are acting like you are the boss.
Your logical arguments don’t make sense when faced with an illogical administration.
If the US wants to sanction BYD they will do it, without considering logic, or your arguments. That’s the reality
Sure and China will nationalize all the American automakers in China. If we get to a point where Chinese companies are banned from USD, Chinese gov't better have rationalized CBDC, Yuan clearing, local currency settlement or something like that will all of global south by then. The work for this has already been under way for awhile. I have been posting content on this on the global south spread.When BYD is put on the SDN list, BYD will lose access to the USD network. BYD will have trouble getting letter of credits (for selling cars across borders), lose access to all its USD bank accounts, can’t send money abroad to pay suppliers or its oversea employees, no more access to its assets in the US….
I have already said American politicians aren’t rational and they believe they have power to control the world. Just saying BYD and other Chinese companies need to prepare for being put on the SDN list.Sure and China will nationalize all the American automakers in China. If we get to a point where Chinese companies are banned from USD, Chinese gov't better have rationalized CBDC, Yuan clearing, local currency settlement or something like that will all of global south by then. The work for this has already been under way for awhile. I have been posting content on this on the global south spread.
It wouldn't need USD bank accounts if China has direct local currency settlement or CBDC set up with the country in question.
Now, answer me this. China is 1/3 of the world's auto market. It has done this well so far without international market. Even when we get to 2025, domestic market Is likely to represent over 80% of its sales. Do you think America have more to gain if US automakers loose access to China or BYD loses access to Western market? Same with Germany? If China keeps foreign automakers out because they are not letting BYD sell cars to their country or establishing local bank accounts through central bank exchanges, BYD is likely to get 50% of local Chinese market + good chunk of global south. Tesla would lose its production ability and its second biggest market.
How does Western automakers continue to build EVs without Chinese supply chain?
BYD is better positioned than anyone else to be put on SDN list. It is deeply connected to Californian political class. It's very popular with the environmental crowd. It has a good reputation due to its commitment to reduce global emission. On top of that, it is doing a great job of getting itself into every major company's supply chain.I have already said American politicians aren’t rational and they believe they have power to control the world. Just saying BYD and other Chinese companies need to prepare for being put on the SDN list.
China aren’t gonna nationalize anything because that will scare off future investors. I haven’t noticed any major investments in the US by Chinese companies (BYD, CATL, etc) after the West seized Russian assets.