powerwall lifepo4 battery for solar system.New breakthrough in ternary lithium batteries - magazine batteries

　　Recently, GAC Aian released safety technology for the magazine battery system, which not only did the Ningde Times cover up and dare not conduct public needle testing, but also redefined the safety standard for ternary lithium. It seems that GAC Aian wants to announce to the industry that if lithium iron phosphate looks like BYD's "blade", then ternary lithium can only rely on GAC Aian's "magazine".

　　Starting from "magazine", "unsafe ternary lithium batteries" have become history.

　　As is well known, in the field of power batteries in China, BYD originally held a good hand, but due to its "self-sufficiency" policy, it not only failed to "suffocate" other new energy vehicle companies, but also forced Ningde Times into a unicorn with a market value exceeding 750 billion; Of course, Ningde Times did not play the arrogance of "Rocket" by relying on the good card of ternary lithium battery, but let the disillusioned BYD redeem lithium iron phosphate with "blade battery".

　　Under a series of twists and turns, power batteries have also experienced the one-sided situation of lithium iron phosphate and ternary lithium batteries, and now the current stalemate. All of this is determined by the shortcomings and exposure of the two mainstream technology routes of batteries. For example, lithium iron phosphate batteries are widely used in mid to low range vehicle models due to their longer lifespan and lower cost; However, ternary lithium batteries are mainly used in mid to high range vehicle models due to their high energy density and low vehicle power consumption. The most concerning issue among them is the difference in battery safety performance, as the internal activity of the Sa Yuan lithium-ion battery is more active, resulting in higher energy density but also significant unsafe factors.

　　So, companies related to the ternary lithium battery industry chain are also conducting research on battery safety technology, and "no fire" battery technology is the most important and difficult fortress to conquer for battery safety. GAC Aian took the lead in withstanding the needle prick thermal diffusion test of the entire battery pack led by Dr. Liu Shiqiang, the chief expert of the China Automotive Technology Research Center and one of the drafters of the national battery safety standard, with its magazine battery. On site, 5 minutes after the thermal accident signal was sent out, the magazine battery of GAC Aian only briefly smoked, without any fire or explosion phenomenon; After standing for 48 hours, the voltage dropped to 0V and the temperature returned to room temperature. After acupuncture, only the punctured battery cell module lost its thermal control and did not spread to other battery cells. Open the entire battery pack and observe that the internal structure is intact. This is the first time in the industry that a complete package of ternary lithium batteries has been tested without ignition, and a historic breakthrough has been made in the safety of ternary lithium batteries.

　　It is understood that the magazine battery of GAC Aian is a systematic technology specifically designed to enhance the safety of power batteries. It is a complete set of security technologies that enhance the inherent safety of battery cells, enhance passive safety, and then actively prevent and control software. It is also an intelligent security technology that integrates software and hardware, and has ultra-high defense capabilities. Based on the design concept of "preventing short circuits within the battery cell, preventing thermal runaway after short circuits, and preventing thermal spread after thermal runaway", the magazine battery adopts a design similar to a safety compartment, which can effectively block the spread of thermal runaway cells. When abnormal voltage or temperature of the cells are detected, the quick cooling system of the battery is automatically activated to cool the battery.

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