Mi A1

[Discussion] Pyrolytic Graphite Sheet - All You Need To Know

2017-09-07 12:48:45
12021 159

Hey Mi Fans

Xiaomi Mi A1, the first smartphone with Android One by Xiaomi India, was launched in India on 5th September at an event in New Delhi. Mi A1 is "Created by Xiaomi , Powered by Google". Mi A1 offers stock Android experience and has been optimized for Google services (such as Google Assistant and Photos), will be secured via Google Play Protect, and will receive timely Android updates (with promises for both Android O and Android P).

Did you know that Mi A1 comes with Dual Prolytic Graphite Sheets which will help diffuse heat quickly? Let's discuss about Dual Prolytic Graphite Sheets and how it works.

What is Dual Prolytic Graphite Sheets (PGS) ?
Pyrolytic Graphite Sheet is a heat spreading material with high thermal conductivity. This material is lightweight and highly flexible. It can be cut into custom shapes, making it extremely useful for applications with limited space. In addition, it has excellent thermal conductivity properties, 600 to 800 W/(m-K), which is twice as high as copper and three times as high as aluminum.

PGS is extremely effective in the development of equipment where temperature arises and it have to be control the heat. PGS is an ideal solution where there are  heat sources such as CPUs, processors, power amplifiers, smartphones,that create hot spots that need to be diffused.

Key Features of PGS:
1. Excellent thermal conductivity in its plane (600 to 1700 W/m.K) or 2 to 4 times as high as copper, 3 to 6 times as high as aluminum
2. Lightweight and ultra-thin: Specific gravity: 0.85 to 2.1g/cm3 (1/4 to 1/10 of copper, 1/1.3 to 1/3 of aluminum in density)
3. Flexible and easy to be cut or trimmed (withstands repeated bending) Low thermal resistance Shielding effect
4. Maintenance-free

How Prolytic Graphite Sheet Work?
Basically the Prolytic Graphite Sheet is carrying the heat from heat source of the smartphone and define the heat through the sheet!

Here is a sample of heat definition

Flexibility Of  Prolytic Graphite Sheet
PGS is bending-resistant due to its flexibility. PGS can be used for areas such as curved surfaces and corner because its heat conductivity will remain unchanged in the fold PGS.

Bending Limitation

Now let's look into a graph and see what hapeen without PGS and with PGS.
Material Characteristics of Graphite Sheets

So hope this information will help you to find out what is Dual Pyrolytic Graphite Sheet, and what is the work of this sheet. Keep reading, keep learning, thank you.


Number of participants 5 Experience +48 Pack Reason

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2017-09-07 12:48:45
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2017-09-10 01:03:46
Former Super Moderator - Products and Device Team Leader - Mi Community India.


Pro Bunny

p.vinod | from Redmi Note 3


ohh.....can it use for all mi mobiles?
2017-09-13 21:12:53


Sourav Giri Author | from Redmi Note 3


ohh.....can it use for all mi mobiles?

Useable, but for it is only Avilable at Mi A1
2017-09-13 21:21:46
Thanks for sharing the info bro :)
2017-09-13 21:27:40

Join Our Channel: https://goo.gl/A6dT58


Shravan Doosa | from Redmi Note 3


2017-09-13 21:34:09

Grandmaster Bunny

SAIRITWIK | from Redmi Note 3


Great Innovation..
2017-09-13 21:36:09

Master Bunny

nachiketb | from Redmi 4


nice information. Thanks sourav giri
2017-09-13 21:39:42

Master Bunny

h8mn | from Mi 4i


looks like tata nano team has got a new buffer material for dissipation of heat around its a/c unit n engines  
2017-09-13 21:40:07
mi mIx2 n many mi goodies
Thanks for sharing
2017-09-13 21:42:44

MIUI beta tester

Souravghosh | from Mi 4i


Only it's need a nfc
2017-09-13 21:43:25
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Sourav Giri


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