Energy
New Tesla patent points to safer battery packs with damage-isolating energy system
Details from Tesla’s new patent suggests that the company is coming up with a way to make its battery packs safer. Using what the electric car and energy company describes as an “Energy Storage System,” Tesla would be able to isolate damages caused by failed battery cells, saving functional cells in the battery pack.
The patent, which was published today, listed an international filing date on January 10, 2018. Tesla noted in its patent that battery cells generate heat during both charging and discharging. When cells fail, the individual units typically release hot gases that could negatively affect the integrity of nearby cells. This usually results in functional cells being damaged as well. Tesla’s patent describes the use of two interconnects that would be positioned over the multiple battery cells. Multiple first cell connectors connect the positive terminal of the battery cells to the first interconnect, while multiple second cell connectors connect the negative terminal of the battery cells to the second interconnect. A top plate with an interior and an exterior side is placed over the first and second interconnect. An illustration of this could be found below.
An exploded view of the energy storage system, according to certain embodiments of the invention. [Credit: Tesla]
This top plate includes one or more weak areas above one or more battery cells. These weak areas are designed to rupture when failed battery cells release heat and build up pressure. Tesla’s patent notes that these weak areas could be chemically weaker when exposed to the caustic gases released by failed battery cells. By adopting this system, Tesla would be able to contain the damage from failed cells to a specific section of the battery pack, saving the integrity of functional battery cells. Tesla elaborates on this process in its patent.
“During operation of the energy storage system, the battery cells generate heat. The system may include features or material to thermally insulate the battery cells from the heat generated by other cells (and/or other electrical components), such as a polymer-based insulating material or another type of insulating material. The system may also include features, such as a cold plate or heat pipes, to remove heat generated by the battery cells during operation of the energy storage system. The features or material to perform this electrical insulation may include the interstitial material or a sleeve, as further described below. In alternate embodiments, an air gap may provide the necessary electrical isolation.
“Further, the battery cells may fail and discharge its contents as hot gases that are caustic to the other battery cells and other portions of the system. The energy storage system may include features or material for directing the hot-gas discharge during failure of a battery cell. In certain embodiments, the features or material for insulating the battery cells from heat generated by other battery cells (and/or other electrical components) and the feature or material that directs the discharge of the hot gases during battery cell failure may be the same. In other embodiments, separate features or materials may both insulate a battery cell from the other battery cells and also direct the discharge of any hot gases.”
Tesla’s new patent is yet another sign that the electric car maker is pushing innovation despite the company’s lead in battery technology. Tesla’s 2170 cells, which are fitted on the Model 3’s battery pack, have garnered widespread acclaim from industry experts such as Sandy Munro of Munro & Associates, who dubbed the cells as the best batteries in the world to date. In his conclusion to a thorough teardown and analysis of the Model 3, Munro noted that he was impressed with Tesla’s new 2170 batteries. Munro further stated that after tearing down the electric car, he now believes that Tesla is far above other battery manufacturers such as Samsung and LG in terms of technology.
“This is the new cell. This is called the 2170. It’s a little bit bigger; 20% bigger than the old one. It has new chemistry, and quite frankly, it gives you 50% more power. Twenty percent bigger but 50% more power. I’m pretty happy with that,” Munro said.
Battery packs are at the core of Tesla’s business, with batteries powering both the company’s electric car and energy storage systems. With Tesla ramping its efforts on both fronts, it is imperative for the company to ensure its lead in the battery industry. With safer battery packs, Tesla can continue saturating both the auto and energy market with the added assurance that its batteries are as safe as they can be.
Tesla’s new patent for its Energy Storage System could be accessed in full here.
Energy
Tesla inks multi-billion-dollar deal with LG Energy Solution to avoid tariff pressure
Tesla has reportedly secured a sizable partnership with LGES for LFP cells, and there’s an extra positive out of it.
Tesla has reportedly inked a multi-billion-dollar deal with LG Energy Solution in an effort to avoid tariff pressure and domesticate more of its supply chain.
Reuters is reporting that Tesla and LGES, a South Korean battery supplier of the automaker, signed a $4.3 billion deal for energy storage system batteries. The cells are going to be manufactured by LGES at its U.S. factory located in Michigan, the report indicates. The batteries will be the lithium iron phosphate, or LFP, chemistry.
Tesla delivers 384,000 vehicles in Q2 2025, deploys 9.6 GWh in energy storage
It is a move Tesla is making to avoid buying cells and parts from overseas as the Trump White House continues to use tariffs to prioritize domestic manufacturing.
LGES announced earlier today that it had signed a $4.3 billion contract to supply LFP cells over three years to a company, but it did not identify the customer, nor did the company state whether the batteries would be used in automotive or energy storage applications.
The deal is advantageous for both companies. Tesla is going to alleviate its reliance on battery cells that are built out of the country, so it’s going to be able to take some financial pressure off itself.
For LGES, the company has reported that it has experienced slowed demand for its cells in terms of automotive applications. It planned to offset this demand lag with more projects involving the cells in energy storage projects. This has been helped by the need for these systems at data centers used for AI.
During the Q1 Earnings Call, Tesla CFO Vaibhav Taneja confirmed that the company’s energy division had been impacted by the need to source cells from China-based suppliers. He went on to say that the company would work on “securing additional supply chain from non-China-based suppliers.”
It seems as if Tesla has managed to secure some of this needed domestic supply chain.
Energy
Tesla Shanghai Megafactory produces 1,000th Megapack for export to Europe
The Shanghai Megafactory was able to hit this milestone less than six months after it started producing the Megapack.
Tesla Energy has announced a fresh milestone for its newest Megapack factory. As per the electric vehicle maker, the Shanghai Megafactory has successfully produced its 1,000th Megapack battery.
The facility was able to hit this milestone less than six months after it started producing the grid-scale battery system.
New Tesla Megapack Milestone
As per Tesla Asia in a post on its official accounts on social media platform X, the 1,000th Megapack unit that was produced at the Shanghai Megafactory would be exported to Europe. As noted in a CNEV Post report, Tesla’s energy products are currently deployed in over 65 countries and regions globally. This allows Tesla Energy to compete in energy markets that are both emerging and mature.
To commemorate the 1,000th Megapack produced at the Shanghai Megafactory, the Tesla China team posted with the grid-scale battery with celebratory balloons that spelled “Megapack 1000.” The milestone was celebrated by Tesla enthusiasts on social media, especially since the Shanghai Megafactory only started its operations earlier this year.
Quick Megafactory Ramp
The Shanghai Megafactory, similar to Tesla’s other key facilities in China, was constructed quickly. The facility started its construction on May 23, 2024, and it was hailed as Tesla’s first entry storage project outside the United States. Less than a year later, on February 11, 2025, the Shanghai Megafactory officially started producing Megapack batteries. And by March 21, 2025, Tesla China noted that it had shipped the first batch of Megapack batteries from the Shanghai plant to foreign markets.
While the Shanghai Megafactory is still not at the same level of output as Tesla’s Lathrop Megafactory, which produces about 10,000 Megapacks per year, its ramp seems to be quite steady and quick. It would then not be surprising if Tesla China announces the Shanghai Megafactory’s 2,000th Megapack milestone in the coming months.
Energy
Tesla launches first Virtual Power Plant in UK – get paid to use solar
Tesla has launched its first-ever Virtual Power Plant program in the United Kingdom.
Tesla has launched its first-ever Virtual Power Plant program in the United Kingdom. This feature enables users of solar panels and energy storage systems to sell their excess energy back to the grid.
Tesla is utilizing Octopus Energy, a British renewable energy company that operates in multiple markets, including the UK, France, Germany, Italy, Spain, Australia, Japan, New Zealand, and the United States, as the provider for the VPP launch in the region.
The company states that those who enroll in the program can earn up to £300 per month.
Tesla has operated several VPP programs worldwide, most notably in California, Texas, Connecticut, and the U.S. territory of Puerto Rico. This is not the first time Tesla has operated a VPP outside the United States, as there are programs in Australia, Japan, and New Zealand.
This is its first in the UK:
Our first VPP in the UK
You can get paid to share your energy – store excess energy in your Powerwall & sell it back to the grid
You’re making £££ and the community is powered by clean energy
Win-win pic.twitter.com/evhMtJpgy1
— Tesla UK (@tesla_uk) July 17, 2025
Tesla is not the only company that is working with Octopus Energy in the UK for the VPP, as it joins SolarEdge, GivEnergy, and Enphase as other companies that utilize the Octopus platform for their project operations.
It has been six years since Tesla launched its first VPP, as it started its first in Australia back in 2019. In 2024, Tesla paid out over $10 million to those participating in the program.
Participating in the VPP program that Tesla offers not only provides enrolled individuals with the opportunity to earn money, but it also contributes to grid stabilization by supporting local energy grids.
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