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BYD is focusing on improving prismatic batteries to make them more durable

Cylindrical, prismatic, and pouch batteries are the three main types of batteries used in electric and hybrid vehicles. Unlike pouch batteries, the first two types are protected by hard materials. Pouch batteries, on the other hand, are lighter and commonly found in personal computers, tablets, and other consumer electronics...
blade-pack-Batteries
credit: Batterydesign
Dew Briefs:
  • BYD is shifting away from pouch-type batteries used in its hybrid vehicles.
  • The company is currently revamping its battery manufacturing process to back up prismatic cells
  • The new prismatic battery design, called the “Short Blade,” will be used in BYD’s energy storage solutions and is expected to match the structural integrity of the highly acclaimed “Blade Battery” used in their electric series.
BYD to stop making pouch batteries for its hybrid EVs on leakage concerns

BYD, the Chinese electric vehicle giant, is taking a groundbreaking step by moving away from the use of pouch-type batteries that have traditionally been used in its hybrid vehicles. This decision is a direct response to concerns about the long-term durability and safety of pouch batteries, as recent insights suggest that they may be more prone to leaks and potential damage.

In a bold display of innovation, BYD is now undergoing a strategic overhaul of its battery manufacturing process. The company has already begun the conversion of its production facilities in Shaanxi and Zhejiang to support prismatic cells, with plans to do the same at their Qinghai plant by the beginning of 2025.The prismatic battery, known as the “Short Blade,” will now take center stage in BYD’s energy storage solutions. This new battery design is expected to match the structural integrity of the highly acclaimed “Blade Battery” used in BYD’s pure electric series, but with a more compact size suitable for hybrid models.

Cylindrical, prismatic, and pouch batteries are the three main types of batteries used in electric and hybrid vehicles. Unlike pouch batteries, the first two types are protected by hard materials. Pouch batteries, on the other hand, are lighter and commonly found in personal computers, tablets, and other consumer electronics. However, they are more prone to corrosion and may not withstand crashes as well.

three main types of batteries

While hybrids still make up a significant portion of BYD’s sales, accounting for nearly half of the company’s global sales in 2023, this forward-thinking shift demonstrates BYD’s unwavering commitment to superior quality and safety. Despite the absence of widespread incidents involving leaks in BYD’s pouch cell-powered vehicles, proactive measures are being taken to strengthen the brand’s defenses against potential risks of electrolyte leakage, which can have catastrophic consequences such as fires.

In the realm of cautiousness towards pouch batteries, BYD is not the only player. Both Tesla and Volkswagen have also expressed reservations, with Tesla’s Elon Musk going so far as to strongly discourage their use due to safety concerns. It is worth noting that BYD has previously taken proactive measures to address a related issue by recalling numerous Tang DM-i hybrid models that had identified defects in their pouch batteries. This serves as a clear indication of the company’s unwavering commitment to tackling such threats with utmost seriousness.

As BYD further establishes itself as a frontrunner in the electric vehicle market, it consistently emphasizes the paramount significance of product reliability and consumer safety in its pursuit of sustainable mobility.

What recent strategic decision has BYD made regarding their hybrid vehicles?

BYD has recently made the strategic decision to discontinue the use of pouch-type batteries in their hybrid vehicles. This decision was driven by concerns over the long-term durability and safety of these batteries. Instead, they are transitioning to prismatic cells, specifically their new design called the “Short Blade,” which offers similar structural integrity to their “Blade Battery” but in a more compact form for hybrid models. This transition is being implemented across all of BYD’s production facilities.

BYD has made the decision to discontinue the use of pouch-type batteries in their hybrid vehicles due to concerns regarding their long-term durability and safety. They are now transitioning to prismatic cells across all of their production facilities.

The reason behind this change is that pouch batteries are more prone to leaks and potential damage, which can lead to hazardous situations such as fires caused by electrolyte leakage.

To address these concerns, BYD is adopting prismatic batteries with a new design called the “Short Blade.” This design is expected to offer similar structural integrity as their previous “Blade Battery” while being more compact, making it suitable for hybrid models.

It is worth noting that hybrid vehicles make up almost half of BYD’s global sales for the year 2023.Although the article does not mention any widespread incidents of leaks in BYD’s pouch-cell powered vehicles, the company has taken a proactive approach in addressing potential risks.

It is not only BYD but also companies like Tesla and Volkswagen, including Tesla’s CEO Elon Musk, who have expressed reservations about using pouch batteries due to safety considerations.

Furthermore, BYD has previously issued a recall for thousands of Tang DM-i hybrid models due to defects identified in their pouch batteries.

Diver Insight:
  • BYD, the Chinese electric vehicle giant, is making a groundbreaking move by shifting away from using pouch-type batteries in its hybrid vehicles.
  • This decision is a direct response to concerns about the long-term durability and safety of pouch batteries, as recent insights suggest they may be more prone to leaks and potential damage.
  • BYD is undergoing a strategic overhaul of its battery manufacturing process, starting with the conversion of its production facilities in Shaanxi and Zhejiang to support prismatic cells.
  • The Qinghai plant is also set to undergo the same conversion by the beginning of 2025.
  • The prismatic battery, known as the “Short Blade,” will now be the focus of BYD’s energy storage solutions.
  • This new battery design is expected to have the same structural integrity as the highly acclaimed “Blade Battery” used in BYD’s pure electric series but in a more compact size suitable for hybrid models.
  • Despite hybrids making up a significant portion of BYD’s sales, this shift demonstrates the company’s commitment to superior quality and safety.
  • Tesla and Volkswagen have also expressed reservations about pouch batteries, with Elon Musk strongly discouraging their use due to safety concerns.
  • It’s worth noting that BYD has previously taken proactive measures by recalling Tang DM-i hybrid models with identified pouch battery defects.
  • BYD’s proactive approach aims to strengthen the brand’s defenses against potential risks of electrolyte leakage, which can lead to catastrophic consequences like fires.
Jatin
Jatin

Jatin is an EV researcher and author. He specializes in electric chargers and batteries field.