美国东部时间2023 年 12 月 13 日上午10:33

作者：马克·凯恩

松下和下一代电池材料公司Sila宣布签署Sila高性能纳米复合硅阳极商业协议，该阳极被称为Titan Silicon。

这家日本电池制造商的目标是大幅提高能量密度，并希望通过“大幅增加车辆续航里程”和缩短充电时间，使汽车制造商能够提供“无与伦比的电动汽车性能”。

充满电

Sila 的泰坦硅是什么？

锂离子电池由三个主要元件组成：阳极、电解质和阴极。阳极通常是石墨阳极，或添加硅添加剂以提高能量密度的石墨。Sila 的 Titan Silicon（纳米复合硅）是一种石墨阳极替代品，专为大规模生产而设计，并有望实现充电速度更快的更小电池。

据新闻稿称，Sila 的富硅阳极材料将针对松下的下一代锂离子电池进行优化，并在 Sila 位于华盛顿州摩西湖的工厂生产。

松下能源并未透露即将推出的电池的具体规格，但其 2030/31 财年的总体目标是将体积能量密度提高至 1000 Wh/L。与此同时，松下电动汽车电池的全球产量将数倍增长，达到每年200吉瓦时。https://cdn.motor1.com/images/mgl/W8G4LN/s1/sila-s-high-performance-nano-composite-silicon-anode-titan-silicon.jpg

Sila高性能纳米复合硅阳极Titan Silicon

松下能源首席技术官 Shoichiro Watanabe 在 2022 年的一篇文章中透露，该公司正在寻求将能量密度（最有可能是体积密度）提高 20%。Sila 现在表示，通过优化“Titan Silicon 已经实现的经过验证的性能提升，松下能源将能够朝着实现 1000 Wh/L 的目标迈出重要一步。”

据 Sila 介绍，Titan Silico 是第一个经过市场验证的石墨阳极替代品，专为大规模和高性能而设计。它可以将能量密度提高，从而将电动汽车的续航里程提高 20%，而“开发跑道”则可以将这些增益加倍，即按照我们的理解，在当前水平上提高 40%。

体积能量密度的提高意味着电池将会更小。没有关于重量能量密度使电池更轻的消息（可能通过其他解决方案更轻，或者仅仅是因为电池物理尺寸更小）。另一个有趣的事情是松下和Sila提到更快的充电能力，低至10分钟。

Sila 多年来一直致力于开发以硅为主的复合阳极材料，并于 2022 年吸引了梅赛德斯-奔驰，该公司有兴趣在其即将推出的全电动梅赛德斯-奔驰 G 级车中使用能量密度更高的电池。

让我们回想一下，松下还在开发一种新的电池形式工厂，即 4680 型圆柱形电池，特斯拉（内部）已使用该电池。所有这些解决方案都可以组合成下一代电池。

原文阅读

Panasonic Signs Up For Sila's Titan Silicon To Deliver Unmatched EV Performance

Sila says that a 20% increase in driving range is possible today, with the potential for a 40% increase in the future.

Dec 13, 2023 at 10:33am ET

By: Mark Kane

Panasonic and Sila, a next-generation battery materials company, announced the signing of a commercial agreement for Sila's high-performance nano-composite silicon anode, which is called Titan Silicon.

The Japanese battery manufacturer targets a significant increase in energy density and expects to enable automakers to deliver "unmatched EV performance," by "dramatically increasing vehicle range" and reducing the charging time.

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What is Sila’s Titan Silicon?

The lithium-ion battery consists of three main elements—anode, electrolyte, and cathode. The anode is usually a graphite one, or graphite with silicon additives to improve energy density. Sila’s Titan Silicon (nano-composite silicon) is a graphite anode replacement that's engineered for mass-scale production—and hopefully smaller batteries that charge faster.

According to the press release, Sila’s silicon-rich anode materials will be optimized for Panasonic’s next-generation lithium-ion batteries and produced at Sila’s plant in Moses Lake, WA.

Panasonic Energy does not reveal the exact specs of the upcoming battery cells, but its general target by fiscal year FY30/31 is to increase volumetric energy density to 1000 Wh/L. At the same time, the global production of Panasonic EV batteries will increase several times to 200 gigawatt-hours annually.

In an article from 2022, Shoichiro Watanabe, Panasonic Energy CTO revealed that the company is looking for a 20% increase in energy density (most likely volumetric). Sila says now that through optimization of "the proven performance gains already achieved with Titan Silicon, Panasonic Energy will be able to take a major step toward achieving its goal of 1000 Wh/L."

According to Sila, the Titan Silico is the first market-proven graphite anode replacement engineered for mass-scale and high performance. It can boost energy density, and thus the range of an EV, by 20% today, with "a development runway" to double those gains, so by 40% from today's level, as we understand it.

An improvement to the volumetric energy density means that the battery will be smaller. There is no word about the gravimetric energy density to make the battery lighter (it might be lighter through other solutions or simply because the battery will be physically smaller). Another interesting thing is that Panasonic and Sila mention faster charging capability, as low as 10 minutes.

Sila has been developing silicon-dominant composite anode materials for several years now, and in 2022, attracted Mercedes-Benz, which is interested in using more energy-dense batteries in its upcoming all-electric Mercedes-Benz G-Class.

Let's recall that Panasonic is working also on a new battery form-factory, the 4680-type cylindrical battery cells, already used by Tesla (in-house). All these solutions might combine into one next-generation battery cell.