2023年3月28日

它存儲兩次類似的能量,商用鋰離子電池。2023年3月28日,8:55am ET Amprius技術宣布其最新的鋰離子電池的性能被移動電源解決方案獨立消息來源的證實,證實了前所未有的能量密度。據該公司介紹,其鋰電池,基於矽陽極平台,提供大約兩倍比最先進的能量密度,=商用鋰離子電池,這意味著一個長兩倍運行時(或者,重量/尺寸的一半,假設的能力是相同的)。移動電源解決方案的報告(可用)表明Amprius的6.6啊電池額定電壓為3.45 V,有一個能量密度超過每公斤500瓦特時(Wh /公斤),超過每升1300瓦特時(Wh / l)。這是一個一步450 Wh /公斤以上2022年2月報道。這是一個了不起的結果,達到了華氏77度的溫度(25攝氏度)。電池額定容量:6.604啊電池額定電壓:3.45 V電池額定能源:22.8 Wh重量能量密度:> 504 Wh /公斤體積能量密度:> 1321 Wh / l測試條件:77°F (25°C)和C / 10充電/放電電流(C / 100充電頂部,高於4.37 V)充電和放電電流測試中C / 10(10小時10個小時充電和放電周期),這是為電動汽車應用相對較慢。在當前C / 10, 100千瓦小時(kWh)電池將10千瓦(千瓦)的權力。我們不知道是否有任何限製充電/放電功率由於富含矽元素的陽極,但這是一個重要的電動汽車(具體來說,循環壽命高電流)。一般信息說Amprius電池可以充電低至6分鍾80%電荷狀態(SOC)(2021年驗證370 Wh /公斤細胞)。 On the other hand, the same info says that the cycle life varies from 200 to 1,200. Usually, the lower numbers were correlated with higher energy density, higher charging/discharging current, and non-optimum temperatures. In the worst case scenario - 200 cycles, a 100 kWh battery would be worth some 20,000 kWh of energy until its capacity will decrease to 80 percent of the initial value. That would be just 80,000 miles (128,700 km), assuming energy consumption of 250 Wh/mi (155 Wh/km). Anyway, Amprius targets the aviation industry first and the electric vehicle segment "eventually." The company does not say anything about the price, which might be another factor as to why aviation is the starting point (they prioritize energy density above longevity and price). "Amprius’ next-generation cells are well positioned to power products in the fast-growing aviation and, eventually, electric vehicles markets, estimated to be collectively over $100 billion in battery demand by 2025." The prototypes of the record-breaking battery cells will be shipped to select customers in 2023. AALTO HAPS, the Airbus subsidiary developing the 100% solar-electric High Altitude Platform Station for connectivity and earth observation applications, was mentioned in the press release, which indicates that it will be one of the lucky select customers. Jon Bornstein, President of Amprius Lab said: “These cells provide a run time of 200% compared to state-of-the-art graphite cells, while being lighter and smaller than other batteries with the same energy content. This latest validation continues Amprius’ track record of producing the world’s most powerful battery cells and sets an industry benchmark for next-generation battery technology that will ultimately revolutionize how high we fly, how far we travel and how long we can use our devices.”