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It is generally believed that silicon-based anodes for Li-ion batteries would benefit from stronger binders, as cyclic volume changes would not disrupt the cohesion of the composite electrode. Here, we put this belief to the proof by testing electrodes containing SiOx particles and an aromatic polyimide binder. We observe that the electrodes can stretch laterally by as much as 6% during the first cycle, indicating that internal stresses are high enough to induce plastic deformation on the copper current collector. Remarkably, no coating delamination is observed. Additional consequences were size-dependent: while pouch-cell-sized electrodes developed wrinkles, coin-cell-sized ones remained mostly smooth. We demonstrate that wrinkling of the current collector damages the electrode coating, inactivating SiOx domains and accelerating capacity fade. This size-dependent performance decay indicates that, in extreme cases, testing outcomes are highly dependent on scale. Novel battery materials may require testing at larger cell formats for complete validation.

This major paper examines compassion and its importance in the workplace. Scholars have noted that in the past managers did not promote compassionate workplaces because it was viewed as “weak” and “soft”. It was believed that compassion had no place when it came to business competitiveness and further career advancement. However, recent literature indicates the importance of compassion and ways in which it can help a business reach sustainable growth and success. Much of the research shares benefits of a compassionate workplace at both the organizational and personal level, indicating that a compassionate workplace is advantageous. This major paper also addresses the importance of compassionate leaders in an organization and highlights some of the tools that can be used to introduce a more compassionate work environment. To contrast this research, factors that complicate compassion in the workplace are also identified. This is included to ensure that leaders understand what behaviours should not be exhibited in the workplace if the goal is to create a compassionate environment. The paper concludes with recommendations for future research directions, some of which include: measuring levels of compassion in the workplace and how it affects employees, managers and the bottom line of a business, as well as further data collection for the development of compassion training programs.