What battery is better than LiFePO4?

Introduction

The lithium-ion battery stands out among the others in many regards. People frequently question us about the difference between various types of batteries.

To better understand this battery and how it varies from others, we shall go into more detail about them in this post. Your comprehension of which battery will work best for you will improve as you learn about their effectiveness in a variety of aspects.

Which is better lithium ion or lithium phosphate battery?

On the basis of the different crucial elements, we will discuss the variations between a lithium phosphate battery and other lithium-ion batteries.

Energy Density

A battery’s energy density is determined by how much electricity it can produce in relation to its bulk. Watt-hours per kilogram (Wh/kg) are used to measure it. A battery’s ability to produce more electricity from a lower mass depends on its energy density.

Lithium-Ion

One of the elevated energy densities of any battery type is found in lithium-ion batteries. The energy density of these batteries ranges from 100 Wh/kg to 265 Wh/kg.

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Lithium Phosphate

Comparing LFP batteries to lithium-ion batteries, the energy density of an LFP battery is marginally lower. 90–165 Wh/kg is the range of their energy density.

Cycle Life and Life Span

A battery’s cycle life is the number of cycles it can withstand without experiencing any performance degradation. One cycle entails the procedure of going from a full charge to a complete discharge and then fully charging once again. A battery with a higher cycle life will last longer and offer you a greater return on your investment.

Lithium-Ion

The cycle life of lithium-ion batteries typically ranges from 300 to 500 cycles. This corresponds to a time frame of around two to three years.

Lithium Phosphate

LFP batteries have a significant cycle life of roughly 3000 cycles. This refers to a span of time that is longer than seven years.

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Depth Of Discharge

The percentage of discharge that a battery can withstand without harming it is referred to as the depth of discharge. A battery can suffer long-term harm if it is depleted past the point at which it can no longer be recharged. Given that you are using more of the battery’s stored energy, a higher depth of discharge suggests a battery with a wider operating range.

Lithium-Ion

Between 80% and 95% of a lithium-ion battery’s capacity is discharged. This means that you must always leave the battery with between 5% and 20% of its initial charge (the exact percentage depends on the battery in question).

Lithium Phosphate

Batteries made of lithium iron phosphate have an outstanding depth of discharge of 100%. This indicates that you can completely deplete the battery without worrying about doing any harm to it.

Self-Discharge Rate

There are intrinsic chemical processes taking place in batteries that drain some stored charge, even if it is only a little amount, even when they are not linked to any appliances. The battery’s rate of depletion of charge when it is not attached is known as its self-discharge rate. Superior chemical stability and extended charge retention are shown by lower self-discharge rates, which is better for the battery.

Lithium-Ion

The self-discharge rate of a lithium-ion battery is roughly 5% each month. This indicates that after a month of storage, a lithium-ion battery that has been charged, disconnected, and left alone will drop from 100% to 95%.

Lithium Phosphate

The rate of self-discharge for lithium iron phosphate is approximately 3% per month. Accordingly, the battery will drop from 100% to 97% after a month of storage.

Cost per KWh

The price you pay for each KWh of battery capacity is known as the cost per KWh. Since every battery type is offered in a range of storage capacities, comparing them based on cost per KWh is the more advantageous method for determining cost-effectiveness.

KWh is equal to (voltage x amp-hours) / 1000.

Lithium-Ion

Cobalt is used in lithium-ion batteries as the electrode material, which raises the price of the battery.

Lithium Phosphate

Cobalt-free alternatives, such as iron and phosphate, which are both significantly less expensive, are used in lithium iron phosphate batteries.

Weight

When it comes to applications like electric motors, where weight might impact performance, weight can be an important consideration.

Lithium-Ion

Molecules of lithium manganese oxide and lithium cobalt oxide, two heavier and higher density minerals, are found in lithium-ion batteries.

Lithium Phosphate

In comparison to the metals utilized in a lithium-ion battery, the iron compounds in lithium iron phosphate are much lighter.

Warranty

An extended warranty duration ensures a higher return on investment because you can be confident the battery will function for at least the length of the warranty.

Lithium-Ion

You should anticipate a guarantee of six months to a year because a lithium-ion battery has an average lifespan of two years. You can see, for instance, that most smartphone batteries come with a six-month warranty.

Lithium Phosphate

There is normally a five-year guarantee for lithium iron phosphate products. The longest guarantee period is six years for the best LFP batteries, such those offered by Ecotreelithium.

Is there a better technology than lithium batteries?

The following four battery types could displace your dependable lithium-ion battery.

Sodium

This one sounds like a no-brainer because sodium is abundant in seawater and requires no mining or extraction. The issue is that sodium battery components cannot simply be swapped for lithium battery components. Since sodium is a bigger ion than lithium, it won’t fit in between the graphite-based anode’s carbon layers. In comparison to lithium, sodium has a lesser energy density.

Fluoride

Although it’s possible for fluoride batteries to live eight times longer than lithium batteries, doing so is more difficult. This is so because fluoride is an anion, or a negatively charged ion, which is what gives it its high energy density but also makes it reactive and difficult to stable.

Magnesium

Magnesium is not only more accessible than lithium, but it also doesn’t have the branching flaws that can cause lithium batteries to catch fire. Magnesium batteries, however, simply couldn’t compete with lithium batteries in terms of power or storage capacity for decades.

Ammonia

Even if ammonia-powered batteries are unlikely to materialize anytime soon, the substance can nonetheless function as a lithium substitute by powering fuel cells in vehicles and other machinery.

 Is LiFePO4 better than AGM?

Comparing lithium iron phosphate batteries (LiFePO4 or LFP) to AGM and other batteries, they have many advantages. Among other benefits include a longer lifespan, lack of maintenance, exceptional safety, light weight, and enhanced discharge and charge efficiency. Although LiFePO4 batteries are not the cheapest on the market, they have a very long lifespan and require minimal maintenance, making them the best long-term investment you can make.