
A new sodium-ion battery breakthrough means they may one day power EVsSodium-ion battery breakthrough A research team from the US Department of Energy’s Pacific Northwest National Laboratory (PNNL) has developed a sodium-ion battery with greatly extended longevity. . The right salt As PNNL explains, in batteries, the electrolyte is the circulating “blood” that keeps the energy flowing. . Nonflammable technology . [pdf]
One example is batteries based on sodium. Until a year ago, it was mostly lithium; now we know that sodium can play a role.” Northvolt’s current sodium-ion batteries are designed for use in energy storage, but subsequent generations with higher energy density could eventually be used in electric vehicles.
Researchers have developed a new type of material for sodium-ion batteries that could pave the way for a more sustainable and affordable energy future. (Representational image) University of Houston / Just_Super Researchers have developed a new type of material that could make sodium batteries more efficient.
The sodium-ion technology, which has been developed together with research partner Altris, is intended to provide the foundation for Northvolt's next-generation energy storage solutions.
For the batteries to compete on price, specifically against a low-cost variant of the lithium-ion battery known as lithium-iron-phosphate, the study highlights several key routes for sodium-ion battery developers. Most important is to increase energy densities without the use of critical minerals.
CATL's first-generation sodium-ion battery. Credit: CATL Sodium-ion batteries for electric vehicles and energy storage are moving toward the mainstream. Wider use of these batteries could lead to lower costs, less fire risk, and less need for lithium, cobalt, and nickel.
Still, achieving a low-cost contender may be several years away for sodium-ion batteries and will require technological advances and favorable market conditions, according to a new study in Nature Energy. Sodium-ion batteries are often assumed to have lower costs and more resilient supply chains compared to lithium-ion batteries.

Aluminium-ion batteries (AIB) are a class of in which ions serve as . Aluminium can exchange three electrons per ion. This means that insertion of one Al is equivalent to three Li ions. Thus, since the ionic radii of Al (0.54 ) and Li (0.76 Å) are similar, significantly higher numbers of electrons and Al ions can be accepted by cathodes with little damage. Al has 50 times (23.5 megawatt-hours m the energy density of Li-ion batteries an. [pdf]
Aluminum-ion batteries (AIB) AlB represent a promising class of electrochemical energy storage systems, sharing similarities with other battery types in their fundamental structure. Like conventional batteries, Al-ion batteries comprise three essential components: the anode, electrolyte, and cathode.
Aluminum-ion batteries offer several benefits that align with these requirements: Higher Energy Density: With energy densities reaching up to 300 Wh/kg, aluminum-ion batteries can store more energy within the same or smaller physical footprint compared to lithium-ion batteries.
Durability and Longevity: The extended cycle life of aluminum-ion batteries ensures that portable electronics maintain their performance over more charge-discharge cycles. This durability reduces the frequency of battery replacements, contributing to lower long-term costs and reduced electronic waste.
MIT’s advancements in aluminum-based anode technology have significant implications for the future of battery systems. The demonstrated improvements in cycle life and energy density position aluminum-ion batteries as a formidable alternative to lithium-ion systems, particularly in sectors where battery longevity and performance are critical.
However, conventional aluminum-ion batteries suffer from performance limitations and safety issues related to the use of liquid electrolytes. These electrolytes, typically composed of aluminum chloride, are corrosive to the battery’s components and highly sensitive to moisture.
One of the foremost challenges in battery technology is maintaining stability and prolonging cycle life—the number of charge-discharge cycles a battery can undergo before its capacity significantly diminishes. Aluminum-ion batteries offer substantial improvements in these areas compared to traditional lithium-ion systems. Chemical Stability:

In a major ruling issued on 10 February this year, the US International Trade Commission (ITC) ruled on a dispute relating to claims that SK Innovation made use of LG Chem trade secrets surrounding their electric vehicle battery technology. The ITC investigation under US trade law centred on alleged instances of IP. . While patent rights and trade secrets can sometimes be viewed as interchangeable, the reality is there are marked differences between the forms of IP protection each provides. On the one hand, a patent is an IP right that describes an. . The hard-fought battle between SK Innovation and LG Chem underlines just how important trade secrets can be in IP disputes. Yet, while. . Against this highly challenging backdrop, innovators in the energy storage space can take a number of practical steps to get to grips with their trade secret provisions. Of course, different IP. [pdf]
We discuss how ML and AI-based methods can support cyber defense of battery systems. Battery energy storage system (BESS) is an important component of a modern power system since it allows seamless integration of renewable energy sources (RES) into the grid.
Utility-scale battery energy storage systems are vulnerable to cyberattacks. There is a lack of extensive review on the battery cybersecure design and operation. We review the state-of-the-art battery attack detection and mitigation methods. We overview methods to forecast system components behavior to detect an attack.
Confidentiality is the feature of data that implies that data can be accessed only by authorized parties . A confidentiality attack is an attack in which system data is recorded and stolen by an unauthorized party. Some researchers state that confidentiality is not necessary for the system data .
Due to the EV being a spread application of batteries, most battery SOC forecast methods are tested on EV datasets. One of the common datasets described in the literature are Federal Urban Driving Cycles (FUDS), and US06. The efficiency of machine learning (ML) and ANN approaches application on different datasets is highlighted in .
Nowadays, the battery energy storage system (BESS) has become an important component of the electric grid . It can serve multiple services such as frequency regulation, voltage control, backup, black start, etc. .
Sensing units are placed in battery cells to control voltage, current, and temperature. In this work, we assume that the sensing units in batteries are protected and, therefore, the possibility of FDIA is eliminated. To prevent the attack against battery SOC, the forecasting methods can be applied.
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