SKU: 22663287598

Hard carbon paper

Sale price$64.29 Regular price$71.43
Save 10%

Pay in installments of $17.86 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 18 - Sep 23

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Hard carbon paperProduct Name Name: Hard carbon paper Product Overview Hard carbon refers to carbon that is difficult to graphitize, usually obtained by thermal decomposition of cross linked resins with special structures at around 1000 C Common hard carbons include resin carbon, organic polymer pyrolytic carbon, and carbon black. Hard carbon is also a highly regarded negative electrode material in sodium ion batteries. The negative electrode material of sodium ion

Product Name

Name:Hard carbon paper


Product Overview

 

Hard carbon refers to carbon that is difficult to graphitize, usually obtained by thermal decomposition of cross-linked resins with special structures at around 1000 ¡ãC Common hard carbons include resin carbon, organic polymer pyrolytic carbon, and carbon black. Hard carbon is also a highly regarded negative electrode material in sodium ion batteries. The negative electrode material of sodium ion batteries, as the main body of sodium storage in batteries, plays a decisive role in the development of batteries. Compared with other negative electrode materials for sodium ion batteries, hard carbon has the characteristics of disordered internal crystal arrangement and large interlayer spacing, which enables the hard carbon negative electrode to store more charges at the same volume, improving the energy density and endurance of sodium ion batteries. Meanwhile, due to the larger pore structure of hard carbon, it can accommodate more sodium ions, resulting in more uniform expansion and contraction of the electrode during discharge, which increases its cycling stability, charge discharge performance, and prolongs the cycling life of sodium ion batteries. At present, sodium ion batteries have become a hot topic in research and industrialization both domestically and internationally. With the deepening of related research and the development of technology, the market size of hard carbon negative electrode materials is expected to continue to grow. However, there is still no unified understanding of the sodium storage mechanism of hard carbon, and further research is needed to reveal its structure-activity relationship with electrochemical reaction mechanisms, as well as to explore the influence of physical parameters of hard carbon materials on electrochemical performance.


Technical Parameter

 

Appearance:Black fibrous

Length:100-200μm(SEM)

Diameter:5-20μm(SEM)


Product Features

 

Difficult to graphitize: Even at high temperatures above 2500 ¡ãC it is difficult to graphitize.

Short range carbon layer stacking and long-range disordered structure: During the pyrolysis process, the carbon layer tends to grow in a planar direction, but the cross-linking structure in macromolecules hinders its planar growth. Therefore, the carbon layer in hard carbon cannot infinitely extend and grow into a graphite like layered structure, and can only exhibit a carbon layer stacking structure in the short range, while it remains disordered in the long range. Its structure is mainly composed of amorphous parts, with some carbon layers randomly stacked, resulting in defects and pores, while the other part of the carbon layer has a graphite microcrystalline structure, which has no orientation and is cross-linked with each other.

Large interlayer spacing and more micropores: Compared to graphite, hard carbon has a larger interlayer spacing and more micropores, which allows ions to be quickly inserted and removed. Correspondingly, there are more lithium storage active sites for ion insertion and removal, resulting in a larger specific capacity.

Excellent rate performance: Theoretically, hard carbon materials have good rate performance and can achieve high rate charging and discharging.

Long cycle life: The hard carbon structure is stable and has a long charge discharge cycle life.


Application Fields

 

New energy vehicles: Although there is still room for improvement in energy density and cycle life of sodium ion batteries, their performance indicators such as low temperature, safety, and fast charging are good, and they can be used in some new energy vehicles that do not require extreme endurance;

Large scale energy storage: With the rapid expansion of renewable energy generation such as solar and wind power, the demand for energy storage is also increasing. Sodium ion batteries have certain application prospects in the field of energy storage, and hard carbon as its negative electrode material can help improve the performance of energy storage batteries;

Consumer electronic devices, such as smartphones, tablets, laptops, etc., can meet the requirements of these devices for fast battery charging, safety, and other aspects;

Smart grid: In the smart grid, sodium ion batteries can be used in energy storage systems to help balance supply and demand, improve the stability and reliability of the grid;

Low speed transportation vehicles, such as electric bicycles, electric tricycles, etc., have relatively low requirements for battery weight and volume. Sodium ion batteries can be applied due to their cost advantage.


Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 22663287598

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 28 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
F
Verified Purchase
Frogs & Flowers
Louisville, US
★★★★★ 5
I'm going back to Sparkle
Package Size Name: Triple, Size: 3 Triple Rolls (Pack of 1)
I used to buy Sparkle years ago , it was the only brand I bought, but I stopped because they were lower quality than names like Bounty. Recently, before payday I ran out of paper towels and bought this pack before payday so I didn't have to shell out $25 for paper towels. Sparkle i can honestly say has improved immensely in quality, yet still staying reasonably priced. I noticed as soon as I opened one roll it was better quality. They are stronger, much stronger than they used to be. No loose lint like they used to have. They are a bit stiffer in feel compared to Bounty, but still feel soft. Cleaning is the real test for me. The old Sparkle shredded apart as soon as I wet the towel to clean. The new Sparkle is amazing. Gotta say I like it better than Bounty. I used it to clean the bathroom and the towels held up extremely well with being water soaked, used to scrub (friction & pulling). They don't feel thick which i like. Reusable? I'd dunk the towel in water, scrub then rinse the towel and wipe and it held up . Sparkle has improved and won me over!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
A
Verified Purchase
Angela Rose
Bozeman, US
★★★★★ 5
Great value.
Package Size Name: Double, Size: 6 Double Rolls (Pack of 1)
Excellent value for the money. They are not the most thick or soft. But they are better than some. It’s a good middle of the road towel. A very durable paper towel for various odd and end cleanups.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
K
Verified Purchase
Kortney
West Palm Beach, US
★★★★★ 5
House staple
Package Size Name: Double, Size: 6 Double Rolls (Pack of 1)
These Sparkle Pick-A-Size Paper Towels are a great everyday household staple. I really like the pick-a-size option because it helps reduce waste when you only need a small sheet for quick cleanups. The towels are absorbent, durable, and strong enough for kitchen messes, spills, counters, and general household cleaning without falling apart easily. They also tear cleanly and fit standard paper towel holders well. The rolls lasted longer than expected thanks to the smaller sheet option. Overall, a dependable and budget-friendly paper towel choice to keep stocked at home.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
M
Verified Purchase
Michael Lucas
Lake Worth, US
★★★★★ 4
Decent Quality, Will Buy Again
Package Size Name: Double, Size: 6 Double Rolls (Pack of 1)
I recently picked up the Sparkle Pick-A-Size Paper Towels (6 pack) and overall I’m pretty happy with them. The pick-a-size feature is really convenient because you can tear off a smaller sheet for quick spills instead of wasting a full one. For everyday kitchen messes—wiping counters, small spills, or drying hands—they work perfectly well. They’re also reasonably absorbent and the rolls seem to last a decent amount of time, especially when using the smaller sheet sizes. For the price, it feels like a good value compared to some of the more expensive brands. The reason I’m giving 4 stars instead of 5 is that they’re not quite as thick or strong as the premium paper towels out there. For bigger or really messy cleanups, I sometimes end up using two sheets. Overall though, these are a solid everyday paper towel that get the job done and help reduce waste with the pick-a-size option. I’d definitely buy them again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
R
Verified Purchase
Roberta
Whiting, US
★★★★★ 5
Really impressed with the quality and absorption
Package Size Name: Double, Size: 12 Double Rolls (Pack of 1), Package Size Name: Double, Size: 12 Double Rolls (Pack of 1)
I’ve been using these Sparkle paper towels for a few days now, mostly in my kitchen, and I’m honestly impressed. The absorption is great, it handles spills like coffee or oil without needing a bunch of sheets. I also love the “tear-a-square” feature because you can use just what you need and avoid waste. They’re pretty strong too, don’t fall apart easily while cleaning, which makes a big difference for tougher messes. So far, totally worth it and I would definitely buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026

recommand products