[wheelguy]

The Blade Battery emitted neither smoke nor fire after being penetrated, and its surface temperature only reached 30 to 60°C.

The space utilization of the new blade battery is increased by over 50 percent compared to conventional lithium iron phosphate block batteries, claims BYD.

Shenzhen-based electric carmaker BYD has officially launched a new blade-shaped battery to mitigate concerns about battery safety in electric vehicles. The company unveiled its new battery at an online event themed “The Blade Battery – Unsheathed to Safeguard the World”.

According to the company statement, Wang Chuanfu, BYD Chairman and President, said that the Blade Battery reflects BYD’s determination to resolve issues in battery safety while also redefining safety standards for the entire industry.

"In terms of battery safety and energy density, BYD’s Blade Battery has obvious advantages," said Professor Ouyang Minggao, Member of the Chinese Academy of Sciences and Professor at Tsinghua University.

Due to its optimized battery pack structure, the space utilization of the battery pack is increased by over 50 percent compared to conventional lithium iron phosphate block batteries, claims BYD.

BYD further highlighted that while undergoing nail penetration tests, the Blade Battery emitted neither smoke nor fire after being penetrated, and its surface temperature only reached 30 to 60°C.

"Under the same conditions, a ternary lithium battery exceeded 500°C and violently burned, and while a conventional lithium iron phosphate block battery did not openly emit flames or smoke, its surface temperature reached dangerous temperatures of 200 to 400°C," BYD said adding this implies that EVs equipped with the Blade Battery would be far less susceptible to catching fire – even when they are severely damaged.

Besides, BYD also stated that the Blade Battery also passed other extreme test conditions, such as being crushed, bent, being heated in a furnace to 300°C and overcharged by 260 percent. "None of these resulted in a fire or explosion," BYD pointed out.

According to He Long, Vice President of BYD and Chairman of FinDreams Battery, many vehicle brands are in discussion with the comapny about partnerships based on the technology of the Blade Battery. He added that BYD will gladly share and work with global partners to achieve mutually beneficial outcomes for all industry players.

The Han EV, BYD’s flagship sedan model slated for launch this June, will come equipped with the Blade Battery. The new model will lead the brand’s Dynasty Family, boasting a cruising range of 605 kilometers and an acceleration of 0 to 100km/h in just 3.9 seconds, said the company.

Source

[Reinhard]

Wow things in the EV space sure are happening far faster than I (and I think many others) anticipated. At this rate of development & release to market - the ICE cars might have it tough to roll out of showrooms in modern markets in next 2 years tops.

BYD is talking about a supposedly revolutionary technology already set for release in another 2-3 months! Thats no time at all in auto sector calendars. Especially in the current total shutdown like scenario.

On the other hand, anyone can claim their technology as revolutionary as long as there is no 3rd party evaluation. I hope these EVs start getting evaluated for crash tests. Not a bad time for governments across the world to start enforcing crash tests on cars as we start moving from conventional engines to battery pack power units.

[for_cars1]

The flat blade design looks like a perfect form factor for quickly replacing/sliding out the battery at a battery station during a long drive when it runs out of power and quickly replacing it/sliding in with a fully charged battery rather than plugging to a charger and waiting for it to re-charge for hours.

Slide in/ Slide out of the battery from the car looks like a convenient approach if fully charged standardized batteries can be rented in future.

Battery and Auto manufacturers should seriously look into standardizing the form factor of batteries and their interfaces to connect the battery to the car.

There should be well defined size and shape defined for the battery industry wide with a small unit size so that for Eg: a small car would need a one unit slot in the car and a larger vehicle can have multiple battery slots for inserting multiple small units based on its power needs. That way a single battery form factor (size and interface) can cater to a wide variety of vehicles and make it a scalable/viable/feasible option for battery stations to go for a battery rental model rather than a recharge station.

[Reinhard]

Originally Posted by for_cars1

Battery and Auto manufacturers should seriously look into standardizing the form factor of batteries and their interfaces to connect the battery to the car.

The primary reason why auto makers have for decades (we should call it century now!) taken efforts to stay away from standardizing is it kills return business.

People in the know like must members & readers on this forum, would just buy a car & afterwards for any repairs / replacements, go to the nearest and cheapest supplier, rather than to an ASC. After sales repeat businesses on service, spares etc is a huge contributor to a car maker's and supplier's revenue. Take it out - and there is a big loss of business post sales.

[Mortis]

Originally Posted by for_cars1

The flat blade design looks like a perfect form factor for quickly replacing/sliding out the battery at a battery station during a long drive when it runs out of power and quickly replacing it/sliding in with a fully charged battery rather than plugging to a charger and waiting for it to re-charge for hours.

Slide in/ Slide out of the battery from the car looks like a convenient approach if fully charged standardized batteries can be rented in future.

Battery and Auto manufacturers should seriously look into standardizing the form factor of batteries and their interfaces to connect the battery to the car.

There should be well defined size and shape defined for the battery industry wide with a small unit size so that for Eg: a small car would need a one unit slot in the car and a larger vehicle can have multiple battery slots for inserting multiple small units based on its power needs. That way a single battery form factor (size and interface) can cater to a wide variety of vehicles and make it a scalable/viable/feasible option for battery stations to go for a battery rental model rather than a recharge station.

Agreed. I too thought that EVs should come with a main fixed floor mounted battery for general usage and 2-4 hot swappable range extender batteries for long trips that you can change for a fee at various petrol pumps on the highway. I thought of a cylindrical or square form factor with a handle and gasket that would fit in the underseat areas above the floor line.

I guess you will only see some standardized battery for factors when 1-2 companies get technology or distribution networks that are far superior than the competition. Once it gets popular it's easier for it to get adopted as a "standard"

[Shresth_EV]

BYD Introduces 800V E-Platform 3.0 And New EVs: EA1, X DREAM

BYD has announced at the 2021 Shanghai Auto Show an all-new e-platform 3.0 for the next-generation electric vehicles as well as unveiling the X DREAM concept, all-new EA1 model and new 2021 Tang DM-i plug-in hybrid with Blade Batteries.

Moreover, BYD adds that the e-platform 3.0 will continue to be open to the industry - other brands. So far, BYD's solutions were used by Mercedes-Benz (Denza joint venture), Toyota, and Didi Chuxing.

BYD e-platform 3.0

Four core advantages of e-platform 3.0 will be intelligence, efficiency, safety, and aesthetics.

BYD underlines that the new platform not only further integrates and standardizes core components, "but also builds a brand-new body structure, digital and electrical architecture, and a revamped BYD vehicle operating system."

In the e-platform 3.0 we can find affordable BYD Blade Battery LFP chemistry in cell-to-pack (CTP) system (without modules), which is integrated into the vehicle structure. The largest battery pack options should translate into a range of up to 600 miles (965 km) NEDC, probably closer to 400-450 miles (644-724 km) in the real world.

The battery system will be 800 V, which will increase the overall efficiency, as well as allow to fast charge very quickly: 5 minutes to replenish 90 miles (145 km) at the peak.

There is a new 8-in-1 module for the drive system for outstanding performance (0-60 mph in 2.9 seconds) and a new heat pump to minimize range loss from heating in winter.

Key highlights of the platform are :


The BYD EA1 is an all-new urban model, the first from the all-new “e” product series. BYD has shown in Shanghai several versions of the EA1, but without technical details.





Source

[ron178]

BYD Han EV with Blade battery pack crash-tested and tested for low-speed impact by C-IASI.

https://youtu.be/7Phj1l5Fjww

Results valid for commercial-purpose BYD e9.

[volkman10]

BYD Atto 3's LFP Blade battery - what you need to know.



- The Blade battery uses lithium iron phosphate (LFP) as the cathode material.
LFP battery is a type of lithium-ion battery that’s currently not as widely used in EVs as ternary lithium batteries with nickel manganese cobalt (NMC) oxide or nickel cobalt aluminum (NCA) oxide.

- One of the main advantages is safety. Unlike NMC cells that release oxygen in the event of a thermal runaway (overheating of the battery, usually caused by damage like an accident), which catches fire easily, LFP cells hinder the release oxygen due to the phosphorus-oxygen bond in the cathode.

- Blade Battery emitted neither smoke nor fire after being penetrated, and its surface temperature only reached 30- to 60-degree Celsius. Under the same conditions, a ternary lithium battery would have exceeded 500-degree Celsius and burned.

-Another advantage is lower cost. Nickel and cobalt are expensive to source and extract, while iron and phosphates are earth-abundant materials that are more easily accessible, which means lower cost.

- Last but certainly not least, LFP batteries have greater cycle life compared to other lithium-ion batteries. Studies have found that LFP batteries have an estimated 3,000 life cycles at 100 percent depth of discharge (DoD), which means full depletion to fully charged, while NMC batteries degrade twice as quickly.

- LFP batteries can be charged to 100 percent state of charge (SoC) with less concern of battery degradation.

-The Blade battery cells allows for a cell-to-pack design that eliminates the need for modules. Regular block type prismatic cell has to be stacked in a module that takes up more space.

-Without modules, the singular cells are arranged together in an array and then inserted into a battery pack. Due to its optimized battery pack structure the space utilization is increased by over 50 percent compared to conventional LFP block batteries, increasing overall volumetric energy density.

-Blade battery uses LFP chemistry that is theoretically safer, costs less, and have a longer cycle life.

-Its downside is the lower energy density compared to ternary lithium batteries. However, the Blade battery design mitigates the disadvantage with its clever form factor, allowing a higher energy density at the pack level.

Link

[Sumedik]

Originally Posted by for_cars1

Battery and Auto manufacturers should seriously look into standardizing the form factor of batteries and their interfaces to connect the battery to the car.

There should be well defined size and shape defined for the battery industry wide with a small unit size so that for Eg: a small car would need a one unit slot in the car and a larger vehicle can have multiple battery slots for inserting multiple small units based on its power needs. That way a single battery form factor (size and interface) can cater to a wide variety of vehicles and make it a scalable/viable/feasible option for battery stations to go for a battery rental model rather than a recharge station.

In an ideal world spot on ! I had been thinking on the same lines. But in real world, it seems unlikely for the sake of return business, as pointed out by others.

[volkman10]

BYD: 2nd generation Blade battery arrives in 2024 with a range of 1,000 km.

New generation of blade battery will be presented in the 2nd half of the year.

global leader in electric cars and plug-in hybrids, announces the coming of the second generation of the Blade battery, scheduled for launch in August 2024. The new technology promises to be a big step forward with advances in autonomy, performance and cost.

In practical terms, the new Blade battery will raise energy density from 140 Wh/kg to 190 Wh/kg, a significant leap that will allow BYD's electric cars to reach up to 1,000 km on a single charge, it is reported. If confirmed, it will be a milestone for this type of cell. As a reference, currently BYD's electric cars with the longest range on sale in Brazil have between 350 and 400 km of range by the Inmetro standard - something between 400 and 500 km in real use.

As a result, performance will be enhanced. Optimizing battery volume, weight, and power consumption will result in a more efficient and dynamic vehicle. With the battery taking up less space, the interior of the car tends to be wider for passengers.

Finally, it is worth highlighting the cost reduction, since smaller and lighter batteries mean less material and production costs, paving the way for more affordable electric cars.

Hybrid with a range of 2,000 km

BYD will also introduce the fifth generation of the DM-i plug-in hybrid system this year. With the promise of consumption of just 2.9L/100km and a combined range of almost 2,000km, the new DM-i will greatly increase the energy efficiency of the brand's hybrids.


Link:

[volkman10]

By the end of 2024, BYD and CATL will produce EV batteries that fully charge in 10 minutes.

The world's biggest battery manufacturers, BYD and CATL, will soon ship lithium-iron-phosphate (LFP) battery cells that can be charged from zero to 100% in ten minutes. CATL will ship 6C-capable Qilin 2.0 batteries by the end of the year, while BYD will have its Blade 2.0 batteries with similar charging performance in the second half of 2024.

Having started as inexpensive cells for entry-level electric vehicles, LFP battery cells are poised to dominate the EV industry as the performance choice. The LFP chemistry has been constantly improved, with the best LFP cells almost on par with NMC cells regarding energy density. However, they appear to gain an edge in fast charging, with record 6C rates that would allow them to fully charge in 10 minutes.

Currently, the best LFP cells produced by CATL, called Shenxing, support 5C charging, which means they can theoretically be fully charged five times in an hour or about 12 minutes. The first electric car that uses the Shenxing battery is Zeekr 001, which only takes 11.5 minutes to charge from 10% to 80%. The other leading battery manufacturer, BYD, is less advanced in this regard, with its Blade battery charging at 4C. It needs about 15 minutes to fully charge, which is still a respectable achievement.

CATL only launched its 5C-capable Shenxing battery in February, which explains why the Chinese batter maker targets the launch of its 6C battery toward the end of 2024. However, CATL also announced the Shenxing Plus LFP battery in April, with an improved energy density of 205 Wh/kg. This would allow a reference EV to travel 1,000 km (620 miles) on a charge without increasing the battery size or weight. However, the Shenxing Plus battery only charges at 4C.

BYD appears to be a little behind CATL, with its best Blade batteries only charging at 4C. However, Chinese media reports that the company is following a different strategy. BYD traditionally makes product announcements only after ensuring that its technology is production-ready. This gives more credibility to the reports that BYD will have its 6C batteries ready in the coming months.

Even though we'll soon have batteries capable of ultra-high charging rates, it doesn't mean much if the infrastructure limits charging speeds. A 6C battery with a capacity of 100 kWh would require chargers capable of dispensing over 650 kW, including losses.

Link:

[volkman10]

BYD says it will launch new generation of blade batteries next year.

BYD said it will launch a new generation of blade batteries in 2025.

BYD's Blade Battery is a less bulky lithium-iron-phosphate battery and is safer than other alternatives in the market and will not catch fire.

BYD will launch its next-gen Blade battery, which will unlock even more range for upcoming EVs. The advanced new batteries are more compact, safer, and more efficient than ever.

According to BYD’s executive, the new batteries promise to “enhance the driving distance of our vehicles.” They will also have a longer life cycle for various reuse cases.

The company is working with local partners to use them for other applications like energy storage. Despite growing geopolitical tension, this commitment is unwavering, no matter what has happened globally in different countries.”


Link:

[pram_ind]

Originally Posted by volkman10

BYD says it will launch new generation of blade batteries next year.

BYD said it will launch a new generation of blade batteries in 2025.

BYD's Blade Battery is a less bulky lithium-iron-phosphate battery and is safer than other alternatives in the market and will not catch fire.

BYD will launch its next-gen Blade battery, which will unlock even more range for upcoming EVs. The advanced new batteries are more compact, safer, and more efficient than ever.

According to BYD’s executive, the new batteries promise to “enhance the driving distance of our vehicles.” They will also have a longer life cycle for various reuse cases.

The company is working with local partners to use them for other applications like energy storage. Despite growing geopolitical tension, this commitment is unwavering, no matter what has happened globally in different countries.”


Link:

Maybe they are planning to introduce LMFP (Lithium Iron Manganese Phosphate) , which is lighter and more energy dense.