---
title: How to Make Your Lithium-ion Battery Design More Sustainable
description: The battery recylcing market is growing. Learn how to make your lithium-ion battery design more sustainable with Parylene coatings.
image: https://hzo.com/hubfs/Imported_Blog_Media/BL0117_TAL_Battery_Recycling_Featured.jpg
---

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Published: December 4, 2021 | Last Updated: February 24, 2026

# How to Make Your Lithium-ion Battery Design More Sustainable

[![Mallory McGuinness-Hickey](https://hzo.com/hubfs/Mal%20and%20Ebbie%202.webp) ](https://hzo.com/blog/author/mallory-mcguinness-hickey) 

[ Mallory McGuinness-Hickey ](https://hzo.com/blog/author/mallory-mcguinness-hickey)

 

A recent report from “[Markets and Markets](https://www.marketsandmarkets.com/Market-Reports/battery-recycling-market-147696175.html)” revealed that experts expect the battery recycling market to grow to $23.2 billion by 2025, at a CAGR of 6.1% from 2020-2025.

This market focused on recycling batteries encompasses many industries and various battery chemistries, including lead-acid batteries, lithium-ion (Li-ion) batteries, and nickel-based batteries. The impetus for this market growth includes sustainability regulations that strive to preserve resources, reduce carbon footprint, and restore soil integrity.

Although data indicate a demand for responsible afterlife handling of batteries, complications can arise for Li-ion energy sources, raising concerns for product designers.

## Lithium-ion Battery Disposal and Recycling Issues

Manufacturers value Li-ion batteries for benefits such as low self-discharge, low “memory” (the tendency to acquire a minimum or maximum state of charge), and high energy density. However, they have volatile chemistry that requires regulating their disposal on both [state](https://www.epa.gov/hwgenerators/links-hazardous-waste-programs-and-us-state-environmental-agencies) and [federal](https://www.epa.gov/recycle/used-lithium-ion-batteries#:~:text=.-,Information%20for%20Businesses,-Some%20lithium%2Dion) levels.

Processes used to recycle lithium-ion batteries have merit because they can regain valuable metals from spent battery cells, including nickel, cobalt, copper, and aluminum. However, there are dangers associated with recycling processes, including thermal, chemical, and electrical hazards due to the potential for chemical reactions.

 

## Designing Longer-Lasting Li-ion Batteries Can Be Part of the Solution

While no definitive, universally accepted solution exists to make lithium-ion batteries easier to handle after they no longer work, product designers can use [Parylene ](https://4615657.hs-sites.com/coatings/parylene-coating)coatings to prevent premature failure and encourage Li-ion resiliency despite exposure to failure-inducing situations. With the ability to extend product life and discourage unnecessary loss using a sustainable coating solution, you can do your part to comply with sustainability guidelines and reduce waste.

**Download HZO’s Battery Coating Brochure**

****

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## How Parylene Reduces Unnecessary Lithium-ion Waste

 

### Corrosion Resistance for Li-ion Batteries

A Parylene provider can strategically coat critical components of Li-ion batteries without interfering with their operation. The thin coating can act as a barrier layer, hindering the devastating consequences of corrosion and premature failure caused by corrosive environments.

**Watch our webinar on proven methods of corrosion resistance.**

****

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Parylene is particularly effective at protecting Li-ion batteries from corrosion. Its water vapor transmission rate (WVTR) and gas permeability, which indicate barrier effectiveness for corrosion resistance, are particularly low.

| Polymer | Gas Permeability at 25 °C, (cc·mm)/(m2·day·atm) | WVTR,(g·mm)/(m2·day) |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| N2 | O2 | CO2 | H2 | H2S | SO2 | CI2 |  |  |
| Parylene C | 0.4 | 2.8 | 3.0 | 43.3 | 5.1 | 4.3 | 0.1 | 0.08 |
| Parylene N | 3.0 | 15.4 | 84.3 | 212.6 | 313 | 745 | 29.2 | 0.59 |
| Parylene F (VT-4) | – | 16.7 | – | – | – | – | – | 0.28 |
| Epoxy (ER) | 1.6 | 4 | 3.1 | 43.3 | – | – | – | 0.94 |
| Polyurethane (UR) | 31.5 | 78.7 | 1,181 | – | – | – | – | 0.93 |
| Silicone (SR) | – | 19,685 | 118,110 | 17,710 | – | – | – | – |

###### *Ref.: Licari, James J. Coating Materials for Electronic Applications – Polymers, Processes, Reliability, Testing. William Andrew Publishing, 2003 and various companies’ literature.*

 

The images below indicate the appearance of coin cell batteries, one exposed to salt water testing, one representing an HZO-coated battery appearance.

 

![](https://www.hzo.com/wp-content/uploads/2021/12/battery-corroded-e1638567236162.jpg) ![](https://hzo.com/hs-fs/hubfs/Imported_Blog_Media/battery-corroded-e1638567236162.jpg?width=496&height=482&name=battery-corroded-e1638567236162.jpg)

###### Figure 1 – Uncoated coin Cell battery subjected to salt water testing

 

![](https://www.hzo.com/wp-content/uploads/2021/12/HZO-Battery.jpg) ![](https://hzo.com/hs-fs/hubfs/Imported_Blog_Media/HZO-Battery.jpg?width=499&height=474&name=HZO-Battery.jpg)

###### Figure 2 – Image of what an HZO Parylene coated battery subjected to saltwater testing would look like

### Heat Dissipation Properties of Parylene

Although lithium-ion batteries require protection from corrosives, when coatings (such as conventional coatings that require more coating to attain a suitable protection level) are applied in thick layers, this can interfere with the heat transfer path, impeding heat dissipation. As thermal conduction is inversely proportional to thickness, integrating the thinnest possible coating solution can prevent overheating, a serious reliability challenge for Li-ion batteries. HZO Parylene can provide superior corrosion resistance at 50% film thinness of conventional conformal coatings, meeting protection and heat dissipation challenges.

 

### Parylene Will Withstand the Life of the Lithium-ion Batteries It Protects

 

When Li-ion batteries are stored for a long time, they become more susceptible to damage as they are exposed to environments with harmful elements. HZO’s coatings can sustain through the product lifecycle, averting common battery e-waste issues.

 

###### Table 3: Lifetime of HZO coatings at different temperatures in air (with oxygen)

|   | 60 °C | 80 °C | 135 °C | 150 °C |
| --- | --- | --- | --- | --- |
| Parylene C | ~100 years | ~20 years | ~70 hours | ~24 hours |
| Parylene N | ~10 years | ~1 years | ~9 hours | ~1 hour |

## HZO Coatings for Lithium-Ion Batteries

As a green manufacturer, HZO focuses on inherently sustainable solutions that comply with REACH, RoHS, and Prop 65 and eliminate cure time. With Parylene, there are:

- No VOCs
- No Solvents
- No Catalysts
- No Disposal Issues
- No Pollution Threats

If you want to learn more about the manufacturing advantages of working with HZO, [contact us](https://4615657.hs-sites.com/contact-us) today to speak with an engineer.

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[Thin Film Applications](https://hzo.com/blog/tag/thin-film-applications)

[June 15, 2023

Preserving Power: Protective Coatings for EV Battery Corrosion

](https://hzo.com/blog/preserving-power-protective-coatings-for-ev-battery-components) [April 15, 2022

Conformal Coating for Drones - Which is Best? 

](https://hzo.com/blog/conformal-coating-for-drones-which-is-best) [June 15, 2023

ADAS Design and Validation for the Real World - Automotive Coatings

](https://hzo.com/blog/advanced-driver-assistance-systems-design-and-validation-for-the-real-world)

[![Mallory McGuinness-Hickey](https://hzo.com/hubfs/Mal%20and%20Ebbie%202.webp) ](https://hzo.com/blog/author/mallory-mcguinness-hickey)

[ Mallory McGuinness-Hickey ](https://hzo.com/blog/author/mallory-mcguinness-hickey)

Mallory is a veteran writer with over a decade of writing experience and has spent over five years at HZO learning about coating technology from the best minds in the industry. Professionally, Mallory is especially interested in the process of problem-solving and watching how the engineering team develops solutions that ensure business requirements are met. Over her years at HZO, Mallory's writing has been cited in industry whitepapers, including "Parabolic Model for Optimum Dry Film Thickness (DFT) of Corrosion Protective Coatings" and "Universal Approach to Integrating Reduced Graphene Oxide into Polymer Electronics." All of Mallory’s blogs are reviewed for accuracy before publication.

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