As more electric vehicles (EVs) are used in Bangladesh, we face a big challenge: we need to make better batteries specially designed for these EVs. Our goal is to create batteries that work really well, last a long time, and can handle Bangladesh’s hot and humid weather. These batteries have to be just right for the local market. The main problems we’re trying to solve are making these batteries last longer so that EVs can be used for a long time without needing new batteries, and improving how much power these batteries can hold. This means cars can go farther without needing to recharge, which is really important for people who are worried about running out of power. Also, we have to make sure these batteries can fit into different types of electric vehicles, from small cars to big trucks. It’s important that all kinds of EVs can use these batteries easily. By making better batteries, we’re helping Bangladesh move towards using more sustainable transportation. This means less pollution and less dependence on fossil fuels like petrol or diesel. Improving battery technology is a big step in making electric vehicles more popular in Bangladesh and helping the environment and the economy at the same time.